New Holland 9090X GE Europe F4HE9687 Grape Harvester Service Repair Manual.pdf

SERVICE MANUAL
9090X
Grape Harvester
Part number 47399849B
English
April 2014
Copyright © 2014 CNH Industrial France S.A.S. All Rights Reserved.
SERVICE
MANUAL
1/2
Part number 47399849B
9090X
Grape Harvester

Link Product / Engine
Product Market Product Engine
9090X H Europe F4HE9687
9090X Europe F4HE9687
9090X GE Europe F4HE9687
9090X O Europe F4HE9687
47399849B 05/05/2014

Contents
INTRODUCTION
Rear axle system........................................................................ 27
[27.100] Powered rear axle.................................................................. 27.1
Hydrostatic drive......................................................................... 29
[29.300] Rear hydrostatic transmission...................................................... 29.1
[29.218] Pump and motor components...................................................... 29.2
[29.202] Hydrostatic transmission ........................................................... 29.3
Brakes and controls .................................................................... 33
[33.202] Hydraulic service brakes ........................................................... 33.1
Hydraulic systems....................................................................... 35
[35.300] Reservoir, cooler, and filters........................................................ 35.1
[35.610] Machine leveling control system ................................................... 35.2
[35.000] Hydraulic systems.................................................................. 35.3
[35.736] Boom hydraulic system ............................................................ 35.4
[35.903] Shaking hydraulic system .......................................................... 35.5
[35.904] Cleaning hydraulic system ......................................................... 35.6
[35.930] Conveyor receiver system ......................................................... 35.7
[35.946] Frame positioning lifting............................................................ 35.8
[35.952] Destemmer system ................................................................ 35.9
Frames and ballasting ................................................................. 39
[39.100] Frame .............................................................................. 39.1
Steering..................................................................................... 41
[41.101] Steering control .................................................................... 41.1
Electrical systems....................................................................... 55
[55.924] Cab grape harvesting controls ..................................................... 55.1
[55.000] Electrical system ................................................................... 55.2
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[55.100] Harnesses and connectors......................................................... 55.3
[55.408] Warning indicators, alarms, and instruments ...................................... 55.4
[55.425] Boom, dipper, and bucket control system.......................................... 55.5
[55.930] Harvesting hopper control system ................................................. 55.6
[55.DTC] FAULT CODES.................................................................... 55.7
Grape harvester shaking ............................................................. 56
[56.300] Shaking frame...................................................................... 56.1
[56.301] Shaking control..................................................................... 56.2
[56.304] Connecting rods, front plates, and shakers ........................................ 56.3
[56.305] Adjustable width system ........................................................... 56.4
Cleaning.................................................................................... 74
[74.200] Upper extractors ................................................................... 74.1
[74.204] Lower extractors ................................................................... 74.2
47399849B 05/05/2014

INTRODUCTION
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1

INTRODUCTION
Foreword
IMPORTANT INFORMATION
All repair and maintenance operations described in this manual must be carried out exclusively by the New Holland
Service network, strictly complying with the instructions provided and using specific tools as required.
Any operator who carries out the operations specified in this document without complying strictly with the instructions
provided shall be personally liable for the damages that may result.
The manufacturer and all organizations in its distribution chain, including, without limitation, national, regional, and
local dealers, do not accept any liability for damages resulting from a malfunction of parts and/or components not ap-
proved by the manufacturer and used for maintenance operations and/or repair of products manufactured or marketed
by the manufacturer. In no case is a warranty granted to the product manufactured or marketed by the manufacturer
in case of damage caused by improper operation of parts and/or components not approved by the manufacturer.
No reproduction, partial or complete, of the text or illustrations is permitted.
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3

INTRODUCTION
Foreword
Technical Information
This information in this manual has been structured using a unique coding environment. This is the way in which
technical information is created, stored and retrieved in the Technical Information Database. The location (on the
machine) has been coded using SAP coding to align locations with the warranty system.
The coding classifies all information in three ways.
The first category is the Location, the second category is the Information Type and the third category is the Product:
• LOCATION - is the component or function on the machine, that the piece of technical information is going to describe
e.g., Fuel tank.
• INFORMATION TYPE - is the piece of technical information that has been written for a particular component or
function on the machine e.g. Capacity would be a type of Technical Data that would describe the amount of fuel
held by the Fuel tank.
• PRODUCT - is the model that the piece of technical information is written for.
Every piece of technical information will have those 3 categories attached to it. You will be able to use any combination
of those categories to find the right piece of technical information you need to resolve that customers concern on his
machine.
That information could be:
• the description of how to remove the cylinder head
• a table of specifications for a hydraulic pump
• a fault code
• a troubleshooting table
• a special tool
How to Use this Manual
This manual is divided into Sections. Each Section is then divided into Chapters. Contents pages are included at the
beginning of the manual, then inside every Section and inside every Chapter. An alphabetical Index is included at the
end of a Chapter. Page number references are included for every piece of technical information listed in the Chapter
Contents or Chapter Index.
Each Chapter is divided into four Information types:
• Technical Data (specifications) for all the mechanical, electrical or hydraulic devices, components and, assemblies.
• Functional Data (how it works) for all the mechanical, electrical or hydraulic devices, components and assemblies.
• Diagnostic Data (fault codes, electrical and hydraulic troubleshooting) for all the mechanical, electrical or hydraulic
devices, components and assemblies.
• Service data (remove disassembly, assemble, install) for all the mechanical, electrical or hydraulic devices, com-
ponents and assemblies.
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SERVICE MANUAL
Rear axle system
9000 X
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27

Rear axle system - Powered rear axle
Rear axle - Transform - Changing the rear track -
NOTE: To change the rear track of the machine by 160 mm (6.3 in), you must turn over the wheel arm fastening
bearings. The bearings are moved by 40 mm (1.6 in).
1. Remove the corresponding rear wheel. To do this:
• Apply the parking brake.
• Lift the machine using its standalone system.
• Place a cubed wooden block measuring A = 450 mm
(17.7 in) under the rear wheel arm pivot.
• Lower the machine using its standalone system until
the wheel is just off the ground.
• Shut down the engine.
• Remove the wheel.
2. Remove the pin (1) of the height stop telescopic tube
(2).
COIL11GRH020A0B 1
3. Place a mobile lifting device under the wheel arm (3).
4. Remove the 4 fixing screws (4) from the 2 fastening
bearings (5).
COIL11GRH021A0B 2
5. Mark the position of the spacer rings (6).
ATTENTION: When reassembling, you must put spacer rings of the same thickness under each bearing.
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6. Remove the spring retaining rings (7) and pull out the
bearings (5).
COIL11GRH022A0B 3
7. Fit the bearings (8) onto the wheel arms at the required
track width.
• Position A = wide track.
• Position B = narrow track.
8. Replace the spring retaining rings (7).
9. Replace the screws (4), inserting the corresponding
spacer rings. The tightening torque of the screws (4)
is 650 N·m (5753.0 lb in).
COIL11GRH023A0B 4
NOTE: The diagrams show the positions of the right-hand wheel arm. The bearings are always fitted in the same
holes located towards the outside of the machine. To change the track width, the bearings are simply turned over.
For information, the other holes are not used.
10. Replace the pin (1) of the height stop tube according
to the desired track width.
• Position A = wide track, the spacer (9) will be on the
outside of the chassis.
• Position B = narrow track, the spacer (9) will be on
the inside of the chassis.
COIL11GRH024A0B 5
11. Remove the mobile lifting device.
12. Replace the wheel. The tightening torque of the wheel
is 700 N·m (6195.5 lb in).
13. Start the engine and raise the machine using its hy-
draulic system. Remove the wooden wedge.
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14. Adjust the side stops of the harvesting equipment.
• The diagram shows how the stop is fitted when the
machine track is in the wide position. The spacer
ring (10) is fitted inside the bracket.
• When the machine track is in the narrow position,
this spacer ring (10) must be fitted on the outside
of the bracket. The 2 spacer rings are both on the
outside of the bracket.
COIL11GRH025A0B 6
NOTE: The swinging of the harvesting machine will therefore be reduced.
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Hydrostatic drive - Pump and motor components
Motor - Remove - Rear wheel motor -
NOTE: When removing the hydraulic piping, have a suitable container readily available to capture any residual hy-
draulic oil.
1. Remove the corresponding rear wheel. To do this:
• Apply the parking brake.
• Lift the machine using its self-powered device.
• Place a cubed wooden block measuring X = 450 mm
(17.7 in) under the rear wheel arm pivot.
• Lower the machine using its self-powered device un-
til the wheel is just off the ground.
• Lock it in position by placing the telescopic tube pin
in (A).
COIL10GRH458A0B 1
2. Before disconnecting the motor hoses, the drainage
hose at the filter located at the front of the hydraulic
reservoir must be disconnected. This will prevent the
reservoir
from draining (1) Common drain for the two front and
rear left-hand wheel motors.
(2) Front right-hand wheel motor drain.
(3) Rear right-hand wheel motor drain.
COIL10GRH459A0B 2
3. For the rear left-hand wheel only, remove the speed
sensor and its bracket by removing the screws (4).
COIL10GRH007A0C 3
4. Disconnect and plug all the hoses (5).
NOTE: Recover the retaining clamp joints.
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5. Remove the fixing screws (6) and take out the motor.
COIL10GRH460A0B 4
ATTENTION: The component weighs approximately 160 kg (352.7 lb). Install a suitable lifting device.
6. Remove the hose installations from the motor and plug
them.
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Motor - Install - Rear wheel motor -
ATTENTION: The component weighs approximately 160 kg (352.7 lb). Have a suitable lifting device ready.
1. Check that the motor is installed on the correct side of
the machine. These motors have a specific direction
of rotation. To ascertain the direction of rotation, check
the part number NEW HOLLAND on the manufacturer's
plate for the motor:
• 87672923 — right-hand motor.
• 87672924 — left-hand motor.
2. Slide the motor (1) into the wheel arm (2) and secure
it using the screws (3). The plate (4) will be placed on
the motor side. The tightening torque of the screws is
500 N·m (4425.4 lb in)
3. Fit the installations (5) and connect the corresponding
hoses.
4. Fit the HP hose flange joints (6) and secure them with
grease. Fit the flanges on the motor by tightening the
screws (7).
COIL10GRH461A0B 1
5. Before starting the hydraulic motor, its housing must
first be filled. To do this:
• Remove the bleed plug (B), located above the motor,
by passing a spanner through an existing hole in the
wheel arm.
• Fit a hand pump to the end of the drainage hose at
the filter located at the front of the hydraulic reservoir
(see removal instructions) Motor - Remove - Rear
wheel motor - (29.218)
• Pump oil into this hose until it runs out of the bleed
hole (B).
• Re-fit the bleed plug (B).
• Remove the pump and connect the drainage hose
(9).
COIL10GRH462A0B 2
6. Install the groundspeed sensor bracket (8) on the left-
hand motor only.
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7. Adjust the speed sensor. To do this:
• Press the target (disc) against the hub using the
wheel nuts.
• Position the bracket between (8) and 3 mm
(0.118 in) from the ends of the target (disc) (10).
• Tighten the fixing screws (9).
• Check that the sensor is positioned at a distance of
B = 4.3 mm (0.2 in) from the target (10), or adjust as
necessary.
COIL10GRH463A0B 3
8. Re-fit the wheel and tighten the nuts (11) to 700 N·m
(6195.5 lb in).
9. Re-fit the pin (A) at working height.
COIL10GRH458A0C 4
10. Start the engine and check that the force-feed pres-
sure indicator lights up, then check the oil level in the
reservoir.
11. Bleed the brakes. To do this, leave the engine run-
ning, and then:
• Disengage the parking brake control lever. (lever
forward)
• Open the bleed screw to remove the air.
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Motor - Remove - Front wheel motor -
draulic oil.
1. Remove the corresponding front wheel. To do this:
• Park on a level surface and apply the parking brake.
• Lower the machine fully using the self-powered de-
vice.
• Engage the backhoe in order to activate the front
yoke. The engine must be stopped.
• Place a suitable jack, approximately 13 t
(28660.09 lb), in the area intended for this purpose
(A), and raise the wheel so it lifts off the ground.
• Place a cubed wooden block under the strut and re-
move the jack.
• Switch off the ignition.
COIL10GRH465A0B 1
2. Remove the protective housing.
3. Before disconnecting the motor hoses, the drainage
hose at the filter located at the front of the hydraulic
reservoir must be disconnected. This will prevent the
reservoir
from draining (1) Common drain for the two front and
rear left-hand wheel motors.
(2) Front right-hand wheel motor drain.
(3) Rear right-hand wheel motor drain.
COIL10GRH459A0B 2
4. Disconnect and plug all the hoses (4).
5. Remove the fixing screws (5) and take out the motor.
COIL10GRH467A0B 3
6. Remove the hose installations (6) from the motor and
plug them.
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Motor - Install - Front wheel motor -
1. The left-hand and right-hand motors are identical and
have no specific direction of rotation.
2. Slide the motor (1) into the wheel strut (2) and secure
it using the screws (3). The plate (4) will be placed on
the motor side. The tightening torque of the screws is
200 N·m (1770.1 lb in)
3. Fit the installations (5) and connect the corresponding
hoses (6).
COIL10GRH467A0C 1
4. Before starting the hydraulic motor, its housing must
first be filled. To do this:
• Remove the bleed plug (B) located on the motor
side.
• Fit a manual pump at the end of the drainage hose at
the filter, located at the front of the hydraulic reser-
voir. (see removal instructions) Motor - Remove -
Front wheel motor - (29.218).
• Pump oil into this hose until it runs out of the bleed
hole (B).
• Re-fit the bleed plug (B).
• Remove the pump and connect the drainage hose
(9).
COIL10GRH469A0B 2
5. Place a suitable jack, approximately 13 t (28660.09 lb),
in the area intended for this purpose (A), and raise the
strut to remove the wooden block.
6. Fit the wheel and tighten the nuts (10) to a torque of
420 N·m (3717.3 lb in)
COIL10GRH466A0B 3
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7. Start the engine and check that the force-feed pressure
indicator lights up, then check the oil level in the reser-
voir.
8. Fit the protective housing.
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Pump - Remove - Forward control pump-
draulic oil.
1. Remove the shaker control pump. (see instructions)
Hydraulic systems - Remove - Shaker control pump
- (35.000).
2. Remove the cleaning control pump. (see instructions)
Hydraulic systems - Remove - Cleaning control
pump - (35.000).
3. Unscrew the four screws (2) from the inside of the ma-
chine to remove the connection block (3). This block
will remain at the end of the hoses.
NOTE: Recover the O-rings located between the block (3)
and the HP block (5).
4. Disconnect all the hoses (4) from the HP block (5).
5. Disconnect all the electrical cables (6) from the HP
block (5).
6. Take out the HP block (5) by removing the four fixing
screws.
ATTENTION: The component weighs approximately 45 kg
(99.2 lb). Install a suitable lifting device.
COIL10GRH444A0B 1
7. Disconnect all the hoses (7) from the pump (1).
8. Disconnect the two electrical cables (8) from the servo-
control unit.
9. Remove the four screws (9) and pull the pump (1) out.
ATTENTION: The component weighs approximately 83 kg
(183.0 lb). Install a suitable lifting device.
COIL10GRH445A0B 2
10. Remove the union installations (10) and plug the
pump ports.
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11. Unscrew the screw (11) and remove the sleeve (12).
COIL10GRH446A0B 3
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Pump - Install - Forward control pump-
NOTE: The component weighs approximately 83 kg (183.0 lb). Install a suitable lifting device.
1. Unplug the pump ports to fit the union installations (2).
2. Fit the drive shaft (3)sleeve. To do this:
• Slide the sleeve (3) onto the pump shaft (1) until the
external side is aligned with the end of the shaft.
• Tighten the screw (4) to a torque of 210 N·m
(1858.7 lb in).
COIL10GRH446A0C 1
3. Slide the pump (1) onto the motor output and secure it
using the four screws (5).
NOTE: The screws (5) are screwed down with normal
thread lock fluid and tightened to a torque of 200 N·m
(1770.1 lb in).
4. Connect all the hoses (5) to the pump, except the
drainage hose (7).
COIL10GRH447A0B 2
5. Connect the pump servo-control electrical cables.
NOTE: The forward motion circuit will not function correctly
unless the electrical connections correspond to those in the
diagram below.
COIL10GRH448A0B 3
6. Position the hydraulic HP block (8) under the pump
(1)and secure it using four screws (10) tightened to a
torque of 120 N·m (1062.1 lb in).
NOTE: Check the condition and position of the O-rings between the HP block and the pump.
7. Connect all the hoses (11) to the HP block (8).
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8. Connect all the electrical connectors to the HP block
(8).
COIL10GRH449A0B 4
NOTE: The forward motion circuit will not function correctly unless the electrical connections correspond to those in
the diagram.
9. Fasten the hydraulic block (12) to the inside of the ma-
chine using screws (13).
COIL10GRH450A0B 5
NOTE: Check the condition and position of the O-rings between the two hydraulic blocks.
10. The pump housing (1) must be filled before operating
the engine.
11. Method:
• Connect a hand pump to the filler coupling (B)
• Remove the breather filter (15) and plug the hose
(14).
• Add oil to the reservoir until it runs out of the uncon-
nected drainage hose (12) union.
ATTENTION: The pressure in the reservoir must never exceed 0.3 bar (4.4 psi).
12. Connect the drainage hose (7).
COIL10GRH443A0C 6
13. Re-fit the cleaning pump. (see instructions) Hydraulic
systems - Install - Cleaning control pump - (35.000)
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14. Re-fit the shaker pump. (see instructions) Hydraulic
systems - Install - Shaker control pump - (35.000)
15. Fit a manometer of 300 bar (4350.0 psi) minimum on
the standby Minimess connector (A) on the HP block
16. Remove the plug and re-fit the breather filter. (15)
17. Start the engine and immediately check that the force-
feed pressure increases. This means that the pump
is in operation.
COIL10GRH452A0B 7
18. Remove the manometer and check the oil level in the
hydraulic reservoir.
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Hydrostatic drive - Hydrostatic transmission
Hydrostatic transmission - General specification
NOTE: For the schematic circuit, refer to Rear hydrostatic transmission - Hydraulic schema (29.300)
Hydrostatic system pressures:
During the test, the oil should be at 60 °C inside the tank
Description Values Limiters Pressure gauge position
HP forward travel 505 Bar +/- 5 Bar 11 220
HP reverse travel 505 Bar +/- 5 Bar 12 221
Flow rate counterbalance
in forward travel
480 Bar +/- 5 Bar 13 220
Flow rate counterbalance
in reverse travel
480 Bar +/- 5 Bar 14 221
Boost 33 Bar - 0 Bar + 2 Bar 15 219
Exchange valve 216 Check the flow rate
Brakes 25 Bar +/- 2 Bar To be fitted to the brake line
after the pressure reducer
Right serial line 480 Bar +/- 5 Bar 218 To be fitted to the serial line
Left serial line 480 Bar +/- 5 Bar 217 To be fitted to the serial line
Norias in forward travel 175 Bar +/- 10 Bar 212 151 and use the Noria washing
position
Norias in reverse travel 175 Bar +/- 10 Bar 213 151 and use the Noria washing
position
Diagram of the motor output hydraulic unit
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RFIL11GRH047H0B 1
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Hydrostatic transmission - Dynamic description
Description of the transmission
Powered by hydrostatic transmission, with a variable displacement pump and electrically controlled servo
A Sauer H1P pump is fitted with valves to counterbalance the displacement
Poclain fixed displacement wheel motor
Front, MSE 08 of 1043 cm³/rev
Rear, MSE 18, double displacement of 1230 cm³/rev and 1406 cm³/rev and a soft shift system
Ground speed:
Road position up to 25 km/h, with front drive and twin lock maintained up to 12 km/h
NOTE: When the lever is in neutral, the transmission is automatically in the field position.
Anti-skid:
Automatic front and rear with standard fitting of motors
Brake system:
Two multidisc brakes integrated into the rear hydraulically controlled motors
NOTE: Before commissioning a new component, it should be purged (motor, pump, pump suction). Refer to the
relevant sections and first start-up.
Pump control and pump and motor operation - Forward travel
The hydrostatic lever is placed in a forward travel position. A proportional electric current reaches the (L004) spool
valve, causing the machine to move forward.
Work position without norias
No solenoids are provided on the HP hydraulic unit; therefore:
Spool valve (211) directs the return from the rear wheels straight to the pump
The machine is in 4-wheel drive mode.
The returns from the front motors are directed straight to the small rear displacement motors to operate the front and
rear anti-skid system. The maximum pressure inside these lines is determined by the limiters (217) and (218)
When turning:
The front and rear anti-skid system is gradually released by steering valves (208) and (209), controlled by solenoid
valves (151) and (153). These solenoids are controlled by the potentiometer fitted onto the steering relay.
Assistance to manoeuvre in full lock is provided by the power supplied individually to solenoid valves (L006) or (L007).
These solenoids are used to place the inner turning motor in the road position. These solenoids are controlled by the
potentiometer fitted onto the steering relay
Spool valve (215) is controlled by the HP operating the (216) oil exchange valve.
RÉDUCTION DE COUPLE: Torque reduction of the front motors is achieved by supplying electrical power to solenoid
(L010):
- To do this: Press the left pedal
The valves (208) (209) open according to the amount of current to the solenoid valve (L010) (see electrical settings)
to reduce the torque of the two front motors by creating a pressure difference between the serial lines and the forward
travel HP. In this case, the turning valves (L012) and (L013) are no longer supplied.
VALVES DE VIRAGE: Electric steering valves (L012) and (L013) open the serial lines through spool valves (208) and
(209), as shown below:
- To assist with fast turns in the field
- Above 12-kph road speeds
.
Work position with norias
Functions are the same as the previous section, but:
Solenoid valve (L036) is powered, so the boost pressure controls spool valve (211). The return from the rear motors
is directed by noria motor (214), ensuring its proportional rotation during forward travel. The maximum torque from
the noria motor is adjusted by the limiter (212) .
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Road position
This control does not allow solenoid valves (L036) and (L010)
to be powered.When the forward travel lever is moved forward from neutral, solenoid valves (L006) and (L007) are
powered and control:
- The two spool valves inside the rear wheel motors are used to operate the large displacement motors and block the
flow from the pump
- The flow from the pump powers the front motors
only- The return from the front motors is always in series with the small displacement rear motors operating the anti-
skid system up to 12 km/h .
Above 12 km/h:
1) The brake lights are off (low pressure sensor (S014) is below 60 bar and the serial lines are released by the auto-
matic supply to solenoid valves (L012) and (L013), which control the two steering valves (208) and (209)
2) The brake lights are on (low pressure sensor (S014) is above 60 bar, the machine is reducing speed, and the serial
lines are maintained because solenoid valves (L012) and (L013), which control steering valves (208) and (209), are
no longer powered
When the forward travel lever returns to neutral, solenoid valves (L006) and (L007) are no longer powered after a
time delay of 1.5 seconds in order to reset the transmission to the field position (4-wheel drive)
Reverse
Solenoid valves (L006), (L007), and (L036) cannot be requested. Therefore, reverse travel is always in 4-wheel drive.
- Spool valve (215) is not requested, so there is no oil exchange.
- The noria motor is able to turn in the opposite direction if a switch on the control panel is held down during reverse
travel. Maximum pressure on limiter (213)
Norias in washing position
This can only be controlled in neutral
Solenoid (L037) allows the lifting system (at B) to power noria motor (214). The return from this motor is directed to
the tank, passing through the cooler. Maximum pressure on the limiter (212).
Braking
- FREINS DYNAMIQUES :
The machine is stopped by the hydrostatic transmission when the operator moves the forward travel lever back to
neutral.
- FREINS DE PARC :
Rear wheel braking is achieved by:
- Either solenoid valves (L008) and (L009)
* These are powered individually by the right-hand pedal and the steering at maximum or a switch on the lever.
* These are powered simultaneously for 5 seconds by turning off the emergency stop switch or by the ignition key.
Or spool valve (222) controlled by the lever on the left-hand side of the seat
The brake release pressure is adjusted by pressure reducer (222)
When the boost pressure is below 15 bar (pipe split or no oil in the tank), the brakes are applied automatically.
NOTA : To comply with the rolling circumference ratio between the front and rear wheels, always make sure that the
recommended tire dimensions are used.
Hauling
- Hitch the machine to the towing vehicle using a rigid bar
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- To tow the machine over a small distance (several hundred meters) at low speed, simply release the rear motor
brakes (refer to the wheel motor section)
- To tow the machine over a longer distance, it is also necessary to set the HP pump valves to "bypass" (refer to the
pump section)
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Hydrostatic transmission - Static description
The main components of the machine's hydrostatic system are:
• Hydro Pump
• High-pressure hydraulic unit (HP)
• Brake control hydraulic unit
• Hydrostatic motors
Hydro Pump
The hydrostatic pump is fitted to the end of the motor that drives it (flywheel side). The hydrostatic pump comprises
the boost pump and the boost pressure relief valve. The hydrostatic pump also contains the displacement change
servo, the multifunction valves, and the displacement counterbalance valves.
156. Non-return valve calibrated to 3 bar 15. Boost pressure limiter
201. Hydro Pump L004 Forward travel control solenoid
11. Forward travel high-pressure limiter
(nonadjustable)
L005. Reverse travel control solenoid
12. Reverse travel high-pressure limiter
(nonadjustable)
13. Forward travel displacement
counterbalance limiter
14. Reverse travel displacement
counterbalance limiter
Diagram of serial pump H1 P115
RFIL11GRH048F0B 1
47399849B 05/05/2014
29.3 [29.202] / 8

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