Caterpillar CAT 312B L EXCAVATOR (2KW00001-UP) Operation and Maintenance Manual Instant Download.pdf
- 1. Product: EXCAVATOR Model: 312B L EXCAVATOR 2KW Configuration: 312B & 312B L Excavators 2KW00001-UP (MACHINE) POWERED BY 3054 Engine Operation and Maintenance Manual 307B, 312B, 315B, 317B and 318B Excavators Media Number -SEBU7500-04 Publication Date -01/03/2001 Date Updated -16/11/2001 s00037320 Foreword SMCS - 6001-011; 6101; 6102; 6523 Literature Information This manual should be stored in the operator's compartment in the literature holder or seat back literature storage area. This manual contains safety information, operation instructions, transportation information, lubrication information and maintenance information. Some photographs or illustrations in this publication show details or attachments that can be different from your machine. Guards and covers might have been removed for illustrative purposes. Continuing improvement and advancement of product design might have caused changes to your machine which are not included in this publication. Read, study and keep this manual with the machine. Whenever a question arises regarding your machine, or this publication, please consult your Cat dealer for the latest available information. Safety The safety section lists basic safety precautions. In addition, this section identifies the text and locations of warning signs and labels used on the machine. Read and understand the basic precautions listed in the safety section before operating or performing lubrication, maintenance and repair on this machine. Operation 2024/8/9 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/siswe...
- 2. The operation section is a reference for the new operator and a refresher for the experienced operator. This section includes a discussion of gauges, switches, machine controls, attachment controls, transportation and towing information. Photographs and illustrations guide the operator through correct procedures of checking, starting, operating and stopping the machine. Operating techniques outlined in this publication are basic. Skill and techniques develop as the operator gains knowledge of the machine and its capabilities. Maintenance The maintenance section is a guide to equipment care. The Maintenance Interval Schedule (MIS) lists the items to be maintained at a specific service interval. Items without specific intervals are listed under the "When Required" service interval. The Maintenance Interval Schedule lists the page number for the step-by-step instructions required to accomplish the scheduled maintenance. Use the Maintenance Interval Schedule as an index or "one safe source" for all maintenance procedures. Maintenance Intervals Use the service hour meter to determine servicing intervals. Calendar intervals shown (daily, weekly, monthly, etc.) can be used instead of service hour meter intervals if they provide more convenient servicing schedules and approximate the indicated service hour meter reading. Recommended service should always be performed at the interval that occurs first. Under extremely severe, dusty or wet operating conditions, more frequent lubrication than is specified in the maintenance intervals chart might be necessary. Perform service on items at multiples of the original requirement. For example, at every 500 service hours or 3 months, also service those items listed under every 250 service hours or monthly and every 10 service hours or daily. California Proposition 65 Warning Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects, and other reproductive harm. Battery posts, terminals and related accessories contain lead and lead compounds. Wash hands after handling. Certified Engine Maintenance Proper maintenance and repair is essential to keep the engine and machine systems operating correctly. As the heavy duty off-road diesel engine owner, you are responsible for the performance of the required maintenance listed in the Owner Manual, Operation and Maintenance Manual, and Service Manual. It is prohibited for any person engaged in the business of repairing, servicing, selling, leasing, or trading engines or machines to remove, alter, or render inoperative any emission related device or element of design installed on or in an engine or machine that is in compliance with the 2/4(W) w 2024/8/9 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/siswe...
- 3. regulations (40 CFR Part 89). Certain elements of the machine and engine such as the exhaust system, fuel system, electrical system, intake air system and cooling system may be emission related and should not be altered unless approved by Caterpillar. Machine Capacity Additional attachments or modifications may exceed machine design capacity which can adversely affect performance characteristics. Included would be stability and system certifications such as brakes, steering, and rollover protective structures (ROPS). Contact your Cat dealer for further information. Cat Product Identification Number Effective First Quarter 2001 the Cat Product Identification Number (PIN) has changed from 8 to 17 characters. In an effort to provide uniform equipment identification, Caterpillar and other construction equipment manufacturers are moving to comply with the latest version of the product identification numbering standard. Non-road machine PINs are defined by ISO 10261. The new PIN format will apply to all Cat machines and generator sets. The PIN plates and frame marking will display the 17 character PIN. The new format will look like the following: Illustration 1 g00751314 Where: 1. Caterpillar's World Manufacturing Code (characters 1-3) 2. Machine Descriptor (characters 4-8) 3. Check Character (character 9) 4. Machine Indicator Section (MIS) or Product Sequence Number (characters 10-17). These were previously referred to as the Serial Number. 3/4(W) w 2024/8/9 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/siswe...
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- 5. Machines and generator sets produced before First Quarter 2001 will maintain their 8 character PIN format. Components such as engines, transmissions, axles, etc. and work tools will continue to use an 8 character Serial Number (S/N). 4/4(W) w
- 6. Product: EXCAVATOR Model: 312B L EXCAVATOR 2KW Configuration: 312B & 312B L Excavators 2KW00001-UP (MACHINE) POWERED BY 3054 Engine Operation and Maintenance Manual 307B, 312B, 315B, 317B and 318B Excavators Media Number -SEBU7500-04 Publication Date -01/03/2001 Date Updated -16/11/2001 i01495034 Model View Illustrations - VA Boom SMCS - 7000 S/N - 2KW1-UP S/N - 5SW1-UP S/N - 6DZ1-UP S/N - 6SW1-UP S/N - 9FS1-UP S/N - 9NW1-UP S/N - 9WW1-UP S/N - ADC1-UP S/N - AEJ1-UP 1/2(W) w 2024/8/9 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/siswe...
- 7. Illustration 1 g00776408 (1) Stub boom (2) Fore boom cylinder (3) Fore boom (4) Stick cylinder (5) Stub boom cylinder 2/2(W) w
- 8. Product: EXCAVATOR Model: 312B L EXCAVATOR 2KW Configuration: 312B & 312B L Excavators 2KW00001-UP (MACHINE) POWERED BY 3054 Engine Operation and Maintenance Manual 307B, 312B, 315B, 317B and 318B Excavators Media Number -SEBU7500-04 Publication Date -01/03/2001 Date Updated -16/11/2001 i01493619 Working Ranges - VA Boom SMCS - 7000 S/N - 2KW1-UP S/N - 6SW1-UP S/N - 9FS1-UP S/N - 9NW1-UP Table 1 Short Stick (2.1 m) Medium Stick (2.5 m) Long Stick (3.0 m) Maximum digging depth 4.84 m 5.25 m 5.73 m Maximum digging depth for a vertical wall 2.88 m 3.18 m 3.63 m Maximum digging depth at a 2.44 m flat floor 4.72 m 5.12 m 5.62 m Maximum reach at ground level 7.96 m 8.35 m 8.81 m Maximum cutting height 9.29 m 9.64 m 10.05 m Maximum loading height 6.82 m 7.18 m 7.57 m Minimum loading height 3.12 m 2.77 m 2.38 m
- 9. Product: EXCAVATOR Model: 312B L EXCAVATOR 2KW Configuration: 312B & 312B L Excavators 2KW00001-UP (MACHINE) POWERED BY 3054 Engine Operation and Maintenance Manual 307B, 312B, 315B, 317B and 318B Excavators Media Number -SEBU7500-04 Publication Date -01/03/2001 Date Updated -16/11/2001 i01499362 Lifting Capacities - 312B and 312B L Excavator with VA Boom SMCS - 7000 S/N - 2KW1-UP S/N - 6SW1-UP S/N - 9FS1-UP S/N - 9NW1-UP Illustration 1 g00586902 (H) Height (F) Lifting capacity over the front or rear of the machine (S) Lifting capacity over the side of the machine (R) Reach Closed Boom with 2.5 m Stick and 500 mm Track Shoes Table 1 312B Excavator with a VA boom, 2.5 m stick, 0.54 m3 bucket, and 500 mm track shoes (1) (R) 0.0 m 1.5 m 3.0 m (H) (F) (S) (F) (S) (F) (S) 1/9(W) w 2024/8/9 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/siswe...
- 10. 4.5 m kg 3.0 m kg 1.5 m kg 8820 (2) 5740 (2) 0.0 m kg 5940 (2) 6980 (2) 8440 (2) 6220 -1.5 m kg 7300 (2) 7110 (2) 9190 5810 -3.0 m kg 6950 (2) 9090 5730 312B Excavator with a VA boom, 2.5 m stick, 0.54 m3 bucket, and 500 mm track shoes (R) 4.5 m Maximum (H) (F) (S) (F) (S) m 4.5 m kg 1170 (2) 5.92 3.0 m kg 3250 (2) 1240 (2) 6.48 1.5 m kg 4360 (2) 3590 1430 (2) 6.56 0.0 m kg 4790 3300 1820 (2) 6.19 -1.5 m kg 4570 3100 -3.0 m kg ( 1 ) "ISO 10567" "SAE J1097" ( 2 ) Capacity is limited by hydraulics rather than by a tipping load. The loads do not exceed 87 percent of hydraulic lifting capacity or 75 percent of tipping capacity. Weight of all lifting accessories must be subtracted from the lifting capacities. Boom at Half Stroke with 2.5 m Stick and 500 mm Track Shoes Table 2 312B Excavator with a VA boom, 2.5 m stick, 0.54 m3 bucket, and 500 mm track shoes (1) (R) 1.5 m 3.0 m 4.5 m (H) (F) (S) (F) (S) (F) (S) 6.0 m kg 2850 (2) 4.5 m kg 3770 (2) 3.0 m kg 5730 (2) 4450 (2) 3630 1.5 m kg 8240 (2) 6290 4830 3340 2/9(W) w 2024/8/9 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/siswe...
- 11. 0.0 m kg 3550 (2) 8090 (2) 5680 4540 3080 -1.5 m kg 6540 (2) 7970 (2) 5470 4380 2930 -3.0 m kg 7060 (2) 7720 (2) 5510 4380 2930 312B Excavator with a VA boom, 2.5 m stick, 0.54 m3 bucket, and 500 mm track shoes (R) 6.0 m Maximum (H) (F) (S) (F) (S) m 6.0 m kg 1230 (2) 6.13 4.5 m kg 1660 (2) 1170 (2) 7.10 3.0 m kg 3130 2210 1210 (2) 7.56 1.5 m kg 3010 2090 1310 (2) 7.63 0.0 m kg 2880 1970 1530 (2) 1440 7.32 -1.5 m kg 2810 1910 1940 (2) 1680 6.58 -3.0 m kg ( 1 ) "ISO 10567" "SAE J1097" ( 2 ) Capacity is limited by hydraulics rather than by a tipping load. The loads do not exceed 87 percent of hydraulic lifting capacity or 75 percent of tipping capacity. Weight of all lifting accessories must be subtracted from the lifting capacities. Opened Boom with 2.5 m Stick and 500 mm Track Shoes Table 3 312B Excavator with a VA boom, 2.5 m stick, 0.54 m3 bucket, and 500 mm track shoes (1) (R) 3.0 m 4.5 m 6.0 m Maximum (H) (F) (S) (F) (S) (F) (S) (F) (S) m 7.5 m kg 3990 (2) 1500 (2) 5.38 6.0 m kg 3890 (2) 3940 (2) 3740 1260 (2) 6.93 4.5 m kg 3950 (2) 4390 (2) 3670 3120 2200 1180 (2) 7.78 3.0 m kg 7830 (2) 6720 4940 3440 3040 2120 1180 (2) 8.20 1.5 m kg 8600 (2) 5810 4620 3150 2910 2000 1230 (2) 1160 8.27 3/9(W) w 2024/8/9 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/siswe...
- 12. 0.0 m kg 6310 (2) 5380 4370 2930 2800 1900 1350 (2) 1210 8.00 -1.5 m kg 7320 (2) 5320 4270 2830 2760 1850 1580 (2) 1400 7.35 -3.0 m kg 3800 (2) 2870 ( 1 ) "ISO 10567" "SAE J1097" ( 2 ) Capacity is limited by hydraulics rather than by a tipping load. The loads do not exceed 87 percent of hydraulic lifting capacity or 75 percent of tipping capacity. Weight of all lifting accessories must be subtracted from the lifting capacities. Closed Boom with 2.5 m Stick and 500 mm Track Shoes Table 4 312B L Excavator with a VA boom, 2.5 m stick, 0.54 m3 bucket, and 500 mm track shoes (1) (R) 0.0 m 1.5 m 3.0 m (H) (F) (S) (F) (S) (F) (S) 4.5 m kg 3.0 m kg 1.5 m kg 8820 (2) 5740 (2) 0.0 m kg 5940 (2) 6980 (2) 8440 (2) 6250 -1.5 m kg 7300 (2) 7110 (2) 9640 (2) 5840 -3.0 m kg 6950 (2) 9160 (2) 5760 312B L Excavator with a VA boom, 2.5 m stick, 0.54 m3 bucket, and 500 mm track shoes (R) 4.5 m Maximum (H) (F) (S) (F) (S) m 4.5 m kg 1170 (2) 5.92 3.0 m kg 3250 (2) 1240 (2) 6.48 1.5 m kg 4360 (2) 3610 1430 (2) 6.56 0.0 m kg 5500 (2) 3320 1820 (2) 6.19 -1.5 m kg 5270 (2) 3120 -3.0 m kg ( 1 ) "ISO 10567" "SAE J1097" 4/9(W) w 2024/8/9 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/siswe...
- 13. ( 2 ) Capacity is limited by hydraulics rather than by a tipping load. The loads do not exceed 87 percent of hydraulic lifting capacity or 75 percent of tipping capacity. Weight of all lifting accessories must be subtracted from the lifting capacities. Boom at Half Stroke with 2.5 m Stick and 500 mm Track Shoes Table 5 312B L Excavator with a VA boom, 2.5 m stick, 0.54 m3 bucket, and 500 mm track shoes (1) (R) 1.5 m 3.0 m 4.5 m (H) (F) (S) (F) (S) (F) (S) 6.0 m kg 2850 (2) 4.5 m kg 3770 (2) 3.0 m kg 5730 (2) 4450 (2) 3650 1.5 m kg 8240 (2) 6320 5370 (2) 3360 0.0 m kg 3550 (2) 8090 (2) 5710 5240 3100 -1.5 m kg 6540 (2) 7970 (2) 5500 5080 2950 -3.0 m kg 7060 (2) 7720 (2) 5540 5070 2950 312B L Excavator with a VA boom, 2.5 m stick, 0.54 m3 bucket, and 500 mm track shoes (R) 6.0 m Maximum (H) (F) (S) (F) (S) m 6.0 m kg 1230 (2) 6.13 4.5 m kg 1660 (2) 1170 (2) 7.10 3.0 m kg 3560 (2) 2220 1210 (2) 7.56 1.5 m kg 3430 2110 1310 (2) 7.63 0.0 m kg 3310 1990 1530 (2) 1450 7.32 -1.5 m kg 3230 1920 1940 (2) 1690 6.58 -3.0 m kg ( 1 ) "ISO 10567" "SAE J1097" ( 2 ) Capacity is limited by hydraulics rather than by a tipping load. The loads do not exceed 87 percent of hydraulic lifting capacity or 75 percent of tipping capacity. Weight of all lifting accessories must be subtracted from the lifting capacities. 5/9(W) w 2024/8/9 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/siswe...
- 14. Opened Boom with 2.5 m Stick and 500 mm Track Shoes Table 6 312B L Excavator with a VA boom, 2.5 m stick, 0.54 m3 bucket, and 500 mm track shoes (1) (R) 3.0 m 4.5 m 6.0 m Maximum (H) (F) (S) (F) (S) (F) (S) (F) (S) m 7.5 m kg 3990 (2) 1500 (2) 5.38 6.0 m kg 3890 (2) 3940 (2) 3760 1260 (2) 6.93 4.5 m kg 3950 (2) 4390 (2) 3690 3550 2210 1180 (2) 7.78 3.0 m kg 7830 (2) 6750 5430 (2) 3460 3470 2140 1180 (2) 8.20 1.5 m kg 8600 (2) 5840 5320 3170 3340 2020 1230 (2) 1170 8.27 0.0 m kg 6310 (2) 5410 5070 2950 3220 1910 1350 (2) 1220 8.00 -1.5 m kg 7320 (2) 5360 4970 2860 3170 1870 1580 (2) 1410 7.35 -3.0 m kg 3800 (2) 2890 ( 1 ) "ISO 10567" "SAE J1097" ( 2 ) Capacity is limited by hydraulics rather than by a tipping load. The loads do not exceed 87 percent of hydraulic lifting capacity or 75 percent of tipping capacity. Weight of all lifting accessories must be subtracted from the lifting capacities. Closed Boom with 2.5 m Stick and 600 mm Track Shoes Table 7 312B L Excavator with a VA boom, 2.5 m stick, 0.54 m3 bucket, and 600 mm track shoes (1) (R) 0.0 m 1.5 m 3.0 m (H) (F) (S) (F) (S) (F) (S) 4.5 m kg 3.0 m kg 1.5 m kg 8820 (2) 5740 (2) 0.0 m kg 5940 (2) 6980 (2) 8440 (2) 6470 -1.5 m kg 7300 (2) 7110 (2) 9640 (2) 6/9(W) w 2024/8/9 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/siswe...
- 15. 6060 -3.0 m kg 6950 (2) 9160 (2) 5980 312B L Excavator with a VA boom, 2.5 m stick, 0.54 m3 bucket, and 600 mm track shoes (R) 4.5 m Maximum (H) (F) (S) (F) (S) m 4.5 m kg 1170 (2) 5.92 3.0 m kg 3250 (2) 1240 (2) 6.48 1.5 m kg 4360 (2) 3730 1430 (2) 6.56 0.0 m kg 5520 (2) 3440 1820 (2) 6.19 -1.5 m kg 5480 (2) 3240 -3.0 m kg ( 1 ) "ISO 10567" "SAE J1097" ( 2 ) Capacity is limited by hydraulics rather than by a tipping load. The loads do not exceed 87 percent of hydraulic lifting capacity or 75 percent of tipping capacity. Weight of all lifting accessories must be subtracted from the lifting capacities. Boom at Half Stroke with 2.5 m Stick and 600 mm Track Shoes Table 8 312B L Excavator with a VA boom, 2.5 m stick, 0.54 m3 bucket, and 600 mm track shoes (1) (R) 1.5 m 3.0 m 4.5 m (H) (F) (S) (F) (S) (F) (S) 6.0 m kg 2850 (2) 4.5 m kg 3770 (2) 3.0 m kg 5730 (2) 4450 (2) 3780 1.5 m kg 8240 (2) 6540 5370 (2) 3480 0.0 m kg 3550 (2) 8090 (2) 5920 5460 3220 -1.5 m kg 6540 (2) 7970 (2) 5720 5290 3080 -3.0 m kg 7060 (2) 7720 (2) 5760 5090 (2) 3070 7/9(W) w 2024/8/9 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/siswe...
- 16. 312B L Excavator with a VA boom, 2.5 m stick, 0.54 m3 bucket, and 600 mm track shoes (R) 6.0 m Maximum (H) (F) (S) (F) (S) m 6.0 m kg 1230 (2) 6.13 4.5 m kg 1660 (2) 1170 (2) 7.10 3.0 m kg 3640 (2) 2310 1210 (2) 7.56 1.5 m kg 3580 2190 1310 (2) 7.63 0.0 m kg 3450 2080 1530 (2) 1520 7.32 -1.5 m kg 3370 2010 1940 (2) 1770 6.58 -3.0 m kg ( 1 ) "ISO 10567" "SAE J1097" ( 2 ) Capacity is limited by hydraulics rather than by a tipping load. The loads do not exceed 87 percent of hydraulic lifting capacity or 75 percent of tipping capacity. Weight of all lifting accessories must be subtracted from the lifting capacities. Opened Boom with 2.5 m Stick and 600 mm Track Shoes Table 9 312B L Excavator with a VA boom, 2.5 m stick, 0.54 m3 bucket, and 600 mm track shoes (1) (R) 3.0 m 4.5 m 6.0 m Maximum (H) (F) (S) (F) (S) (F) (S) (F) (S) m 7.5 m kg 3990 (2) 1500 (2) 5.38 6.0 m kg 3890 (2) 3940 (2) 3890 1260 (2) 6.93 4.5 m kg 3950 (2) 4390 (2) 3820 3690 2300 1180 (2) 7.78 3.0 m kg 7830 (2) 6970 5430 (2) 3590 3610 2220 1180 (2) 8.20 1.5 m kg 8600 (2) 6060 5540 3290 3480 2100 1230 (2) 8.27 0.0 m kg 6310 (2) 5630 5280 3070 3360 2000 1350 (2) 1290 8.00 -1.5 m kg 7320 (2) 5570 5180 2980 3310 1960 1580 (2) 1480 7.35 -3.0 m kg 3800 (2) 3010 8/9(W) w 2024/8/9 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/siswe...
- 17. ( 1 ) "ISO 10567" "SAE J1097" ( 2 ) Capacity is limited by hydraulics rather than by a tipping load. The loads do not exceed 87 percent of hydraulic lifting capacity or 75 percent of tipping capacity. Weight of all lifting accessories must be subtracted from the lifting capacities. 9/9(W) w
- 18. Product: EXCAVATOR Model: 312B L EXCAVATOR 2KW Configuration: 312B & 312B L Excavators 2KW00001-UP (MACHINE) POWERED BY 3054 Engine Operation and Maintenance Manual 307B, 312B, 315B, 317B and 318B Excavators Media Number -SEBU7500-04 Publication Date -01/03/2001 Date Updated -16/11/2001 i01507529 VA Boom Controls SMCS - 5461-VAR S/N - 2KW1-UP S/N - 5SW1-UP S/N - 6DZ1-UP S/N - 6SW1-UP S/N - 9FS1-UP S/N - 9NW1-UP S/N - 9WW1-UP S/N - ADC1-UP S/N - AEJ1-UP 1/3(W) w 2024/8/9 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/siswe...
- 19. Illustration 1 g00775869 When a machine is equipped with auxiliary equipment, the pedal that operates the auxiliary equipment will also be the pedal that operates the VA boom. Since the auxiliary equipment and the VA boom are operated by the same pedal, a switch that is located on the right side console must be switched to the function that is desired. 2/3(W) w 2024/8/9 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/siswe...
- 20. Illustration 2 g00775854 The movement of the VA boom is proportional when the VA boom is operated with the pedal. VA Boom Open (1) - Press downward on the front of the pedal in order to open the VA boom . VA Boom Close (2) - Press downward on the rear of the pedal in order to close the VA boom. Illustration 3 g00781877 The VA boom can also be operated by using the top left button (1) on the right joystick. Boom movement is not proportional when the boom is operated with the joystick. Pressing the left button will open the VA boom. Pressing the button corresponds to a full pedal stroke. The VA boom will stop moving when the button is released. This method of controlling the VA boom can be useful in loading trucks. Note: The VA boom cannot be closed by using the button on the joystick. 3/3(W) w
- 21. Product: EXCAVATOR Model: 312B L EXCAVATOR 2KW Configuration: 312B & 312B L Excavators 2KW00001-UP (MACHINE) POWERED BY 3054 Engine Operation and Maintenance Manual 307B, 312B, 315B, 317B and 318B Excavators Media Number -SEBU7500-04 Publication Date -01/03/2001 Date Updated -16/11/2001 i01496162 Hammer Operation SMCS - 5705-WTL NOTICE Selection of a hydraulic hammer must be done with extra care. Use of a hydraulic hammer not recommended by Caterpillar could result in structural damage to the machine. Consult your Caterpillar dealer for hydraulic hammer information. Only use the hydraulic hammer to break rocks, concrete, and other hard objects. Before you start hydraulic hammer operation, place the machine on a level, stable surface. If the machine must be placed on a slope or on a rough surface, be careful during operation. Before you start hydraulic hammer operation, close the front window. NOTICE In order to avoid structural damage to the host machine or the hydraulic hammer, comply with the following: Do not attempt to break rocks or concrete by burying the hammer tool completely into the rocks or concrete. Do not apply a prying force to the hammer tool in order to remove the hammer tool from the material. Do not allow the hydraulic hammer to continuously operate at one location and for more than one minute. Change the location of the machine and repeat the procedure. 2024/8/9 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/siswe...
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- 23. NOTICE Failure to change the location of the machine could cause the hydraulic oil to overheat. Overheated hydraulic oil could cause damage to the accumulator or to the cylinder seals. Stop hydraulic hammer operation immediately if any of the hydraulic hoses are twisting rapidly. This indicates that the accumulator is punctured. Consult your Caterpillar dealer for the necessary repairs. NOTICE Do not use the dropping force of the hydraulic hammer to break rocks or other hard objects. This could cause structural damage to the machine. Do not use the sides or back of the hydraulic hammer to move rocks or other hard objects. Doing this could cause damage not only to the hammer but to stick or boom cylinder. Do not operate the hydraulic hammer with any of the cylinders fully retracted or extended. Doing this could cause structural damage to the machine, resulting in reduced machine life. Do not use the hydraulic hammer to lift an object. Do not operate the hydraulic hammer while the stick is vertical to the ground. This could allow the stick cylinder to vibrate excessively. Operate the attachment control levers carefully in order to keep the hydraulic hammer's chisel from hitting the boom. Do not operate the hydraulic hammer with the upper structure sideways to the undercarriage. Before you start hydraulic hammer operation, place the upper structure in the recommended position that is shown in the following illustration. Any other operating positions could make the machine unstable. Any other operating positions could place excessive loads on the undercarriage. 2/3(W) w 2024/8/9 https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/siswe...
- 24. Illustration 1 g00105153 (1) Incorrect position. (2) Correct position. (3) Incorrect position. (4) Correct position. 3/3(W) w
- 25. https://www.ebooklibonline.com Hello dear friend! Thank you very much for reading. Enter the link into your browser. The full manual is available for immediate download. https://www.ebooklibonline.com