Bench Test Procedure for Hydraulic Piston Pumps{3203, 5070} Caterpillar


Bench Test Procedure for Hydraulic Piston Pumps{3203, 5070}

Usage:

AP-1055B A3P
Asphalt Paver:
AP-1000B (S/N: AGP1-UP)
AP-1000D (S/N: EAD1-UP)
AP-1055B (S/N: A3P1-UP)
AP-1055D (S/N: FAC1-UP; A6P1-UP)
AP-655C (S/N: AYP1-UP)
AP-800D (S/N: A5P1-UP)
AP600D (S/N: TFM1-UP; TFZ1-UP)
AP655D (S/N: GNN1-UP; MAN1-UP; MAT1-UP; GNZ1-UP)
BG-230D (S/N: B4G1-UP)
BG-2455C (S/N: B2G1-UP)
BG-2455D (S/N: BNW1-UP; BXW1-UP)
BG-260C (S/N: BYG1-UP)
BG-260D (S/N: BPW1-UP)
Backhoe Loader:
414E (S/N: TMS1-UP)
416E (S/N: BWC1-UP)
422E (S/N: HBE1-UP; DSK1-UP; MAW1-UP)
428E (S/N: DXC1-UP; DPH1-UP; SNL1-UP)
434E (S/N: SEF1-UP)
Motor Grader:
12K (S/N: SZP1-UP)
Compact Track Loader:
279C (S/N: MBT1-UP)
289C (S/N: JMP1-UP)
299C (S/N: JSP1-UP)
Multi Terrain Loader:
287C (S/N: MAS1-UP)
277C (S/N: JWF1-UP)
287B (S/N: ZSA1-UP)
297C (S/N: GCP1-UP)
Skid Steer Loader:
246C (S/N: JAY1-UP)
248B (S/N: SCL1-UP)
256C (S/N: DWS1-UP)
262C (S/N: MST1-UP)
268B (S/N: LBA1-UP)
272C (S/N: RED1-UP)
Wheel Loader:
930G (S/N: TWR1-UP; TFW1-UP)
930H (S/N: DHC1-UP; FTD1-UP)
Wheel Tractor-Scraper:
621H (S/N: DBK1-UP; HKK1-UP; NYY1-UP; EAZ1-UP)
621K (S/N: WTA1-UP; WTE1-UP; WTL1-UP; WTP1-UP)
623H (S/N: EJD1-UP; DBF1-UP)
623K (S/N: WTB1-UP; WTM1-UP)
627H (S/N: LCT1-UP; DBW1-UP)
627K (S/N: WTC1-UP; WTN1-UP)

Introduction

Table 1
Revision     Summary of Changes in REHS2321    
14     Added new Wheel Tractor-Scraper serial number prefixes WTE, WTL, WTM, WTN, and WTP to document.    
Added part number 376-5516 Piston Pump Gp to document.
13     Added new Wheel Tractor Scraper serial number prefixes WTA, WTB, and WTC to document.    
Added part number 376-5515 Piston Pump Gp to document.
12     Changed shaft rotation and flows for 237-0292    
Updated Introduction.
11     Added new Wheel Tractor-Scraper serial number prefixes DBW, LCT, EJD, EAZ, NYY, DBF, DBK, and HKK to document.    
Added part number 316-8365 Piston Pump Gp to document.
Added part number 331-9840 Piston Pump Gp to document.
Changed margine pressure value for 224-9405 Piston Pump Gp from 1400 kPa to 2400 kPa.
Added ""Canceled Part Numbers and Replaced Part Numbers" " section to document.
Added REHS1761 "Required Tooling for Bench Testing Hydraulic Components" to References section of document.

© 2013 Caterpillar All Rights Reserved. This guideline is for the use of Cat dealers only. Unauthorized use of this document or the proprietary processes therein without permission bay be violation of intellectual property law.

This Special Instruction includes test procedures for piston pumps. This Special Instruction also provides specifications. The technician should have a good understanding of hydraulic piston pumps. The technician should be educated in the operation of the hydraulic test bench. The test benches in this document are available through the Caterpillar Service Tool Division. Gather all necessary tooling before you need to hook up the pump. Some of the required tooling appears in a table at the end of this document. There are many possible variations of tooling that could be used. Not every possible variation can be listed.

For questions or additional information concerning this guideline, submit a feedback form in the Service Information System web site. In order to address an urgent need, use the following to relay your request to Caterpillar Repair Process Engineering:

  • Cat dealer Technical Communicator

  • Dealer Solution Network

  • Caterpillar Technical Representative

  • Knowledge Network (online)

Canceled Part Numbers and Replaced Part Numbers

This document may not include all Canceled part numbers and replaced part numbers. Use NPR on SIS for information about Canceled part numbers and replaced part numbers. NPR will provide the current part numbers for replaced parts.

Safety

------ WARNING! ------

Personal injury or death can result from improperly checking for a leak.

Always use a board or cardboard when checking for a leak. Escaping air or fluid under pressure, even a pin-hole size leak, can penetrate body tissue causing serious injury, and possible death.

If fluid is injected into your skin, it must be treated immediately by a doctor familiar with this type of injury.

----------------------

------ WARNING! ------

Pump test pressures in this guideline may exceed the normal operating range of the hydraulic test hoses utilized when connecting the tested pump to the test bench. However, the order of magnitude of these pressures is significantly below the burst strength of the Caterpillar "XT6" product.

High pressure oil can escape through improperly assembled hoses and fittings. High pressure oil can also escape through poorly maintained hoses and fittings. High pressure oil may also leak through hose that has become damaged over the life of the hose due to the pressure levels that occur during test bench operation.

Personal injury or death can result from improper hose & fitting inspection or improper hose replacement procedures. Escaping fluid under pressure can penetrate body tissue causing serious injury, and possible death.

Thoroughly inspect all testing hoses, fittings, and quick disconnects prior to any testing operation. Check the assembly date tag or hose assembly log date for a hose life indicator. Replace all Test Bench hoses at a minimum of every 2 years or earlier if the hose or fittings appear to be damaged.

----------------------

------ WARNING! ------

Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact skin.

----------------------

Summary

This procedure is specific to the type of pump and the type of control. Refer to the test specifications and the tooling at the end of this document.

Note: A paper copy of this document may not be the latest version. Go to the Service Information System (SIS) in order to view the latest version.

References

Table 2
References    
Media Number     Title    
REHS1761     Required Tooling for Bench Testing Hydraulic Components    
SEBF8810     Hydraulic Pump, Motor, and Cylinder Bench Test Procedure Reference Manual    
SEHS8892     Operating Instructions for Caterpillar 1U-9400 Series Hydraulic Test Center    
NEHS0563     Tool Operating Manual for 9U-5000 Series Hydraulic Test Bench    

Connections for the Caterpillar Hydraulic Test Center




Illustration 1g01063311

Connections for the Test Center

(1) Flow control for discharge

(2) "F3" flow meter inlet

(3) "F4" flow meter inlet

(4) Oil supply from the auxiliary pump

(5) "F3" inlet for the flow meter with flow limiter

(6) "F3"outlet for the flow meter with pressure control

(7) Load sensing pressure

(8) Signal pressure

(9) "F4" outlet for the flow meter

(10) Return to tank

(11) Connections for case drain

(12) Oil supply




Illustration 2g01063312

Control and Gauges for the Test Center

(13) Meter for speed and torque

(14) Gauge for signal pressure

(15) Control for signal pressure

(16) Pressure gauge for auxiliary pump

(17) Auxiliary pump flow

(18) "F3" discharge pressure gauge

(19) "F3" discharge flow

(20) "F4" discharge pressure gauge

(21) "F4" discharge flow

(22) Auxiliary pump flow control

(23) "F3" margin pressure

(24) "F3" Load control for discharge pressure

(25) "F4" Load control for discharge pressure

Connections for the Caterpillar Hydraulic Test Bench




Illustration 3g01063314

Connections for the Test Bench

(26) "Flow meter 1" loop and "Flow meter 2" loop

(27) Oil Supply




Illustration 4g01093468

Connections for the Test Bench

(28) "Flow meter 2" loop

(29) "Flow meter 1" loop

(30) "Flow meter 2" outlet

(31) Signal pressure line

(32) "Flow meter 2" inlet

(33a) "Flow meter 1" outlet

(33b) Auxiliary oil supply outlet

(34) Auxiliary oil supply inlet

(35) "Flow meter 1" inlet




Illustration 5g01063316

Control and Gauges for the Test Bench

(36) Auxiliary oil supply pressure

(37) Signal pressure

(38) Control for signal pressure

(39) "Flow meter 1" discharge pressure

(40) Control for auxiliary oil supply pressure

(41) "Flow meter 2" discharge pressure

(42) Auxiliary oil supply control

(43) "Flow meter 2" discharge flow

(44) Discharge flow for auxiliary pump

(45) "Flow meter 1" discharge flow

(46) "Flow meter 1" load control

(47) Speed and direction control

(48) "Flow meter 2" load control

Port Locations

This piston pump is produced with multiple types of housings. Port locations will vary. Match the correct illustration with the pump that is being worked on.




Illustration 6g01117479

Typical port locations and adjustments for the type 1 pump body.

(49) Case drain port

(50) Adjustment screw for maximum angle

(51) Discharge port

(52) Adjustment screw for minimum angle

(53) Pressure port for load sensing

(54) Suction port

(55) Adjustment screw for high-pressure cut

(56) Adjustment screw for margin pressure

(57) Gauge port for discharge pressure




Illustration 7g01117774

Typical port locations and adjustments for the type 2 pump body.

(49) Case drain port

(50) Adjustment screw for maximum angle

(51) Discharge port

(52) Adjustment screw for minimum angle

(53) Pressure port for load sensing

(54) Suction port

(55) Adjustment screw for high-pressure cut

(56) Adjustment screw for margin pressure

(57) Gauge port for discharge pressure




Illustration 8g01117776

Typical port locations and adjustments for the type 3 pump body.

(49) Case drain port

(50) Adjustment screw for maximum angle

(51) Discharge port

(52) Adjustment screw for minimum angle

(53) Pressure port for load sensing

(54) Suction port

(55) Adjustment screw for high-pressure cut

(56) Adjustment screw for margin pressure

(57) Gauge port for discharge pressure




Illustration 9g01120731

Typical port locations and adjustments for the type 4 pump body.

(49) Case drain port

(50) Adjustment screw for maximum angle

(51) Discharge port

(52) Adjustment screw for minimum angle

(53) Pressure port for load sensing

(54) Suction port

(55) Adjustment screw for high-pressure cut

(56) Adjustment screw for margin pressure

(57) Gauge port for discharge pressure




Illustration 10g02540836

Typical port locations and adjustments for the type 5 pump body.

(49) Case drain port

(51) Discharge port

(53) Pressure port for load sensing

(54) Suction port

(55) Adjustment screw for high-pressure cut

(56) Adjustment screw for margin pressure

(57) Gauge port for discharge pressure




Illustration 11g01279565

(49) Case drain port

(50) Adjustment screw for maximum angle

(51) Discharge port

(52) Adjustment screw for minimum angle

(53) Pressure port for load sensing

(54) Suction port

(55) Adjustment screw for high-pressure cut

(56) Adjustment screw for margin pressure

(57) Gauge port for discharge pressure

4C-3582 Load Sensing Valve




Illustration 12g01188820

4C-3582 Load Sensing Valve




Illustration 13g01188821

4C-3582 Load Sensing Valve




Illustration 14g01409919

Schematic for 4C-3582 Load Sensing Valve

(58) Outlet Port

(59) Adjustment for the discharge flow

(60) High-pressure valve port

(61) Inlet port

(62) Adjustment for the discharge pressure

(63) Low-pressure valve port

(64) Pressure port for load sensing




Illustration 15g01277840

4C-3582 Load Sensing Valve and 1U-5796 Pressure Differential Gauge

(58) Outlet port

(59) Adjustment for the discharge flow

(60) High-pressure valve port

(61) Inlet port

(62) Adjustment for the discharge pressure

(63) Low-pressure valve port

(64) Pressure port for load sensing

(65) Pressure differential gauge group

(66) Low-pressure gauge port

(67) High-pressure gauge port

Pump Setup

  1. Connect a 1 inch high pressure "XT6" hose from the pump discharge port (51) to inlet port (61) on the 4C-3582 Load Sensing Valve .

  1. Connect a 1 inch high pressure "XT6" hose from outlet port (58) on the 4C-3582 Load Sensing Valve to the flow meter inlet on the test bench.

  1. Connect a 1 inch high-pressure hose from the flow meter outlet on the test bench back to the tank.

  1. Connect a 6D-7726 Hose Assembly to the pressure port for load sensing (64). Connect the other end of 6D-7726 Hose Assembly to the pressure port for load sensing (53) on the pump.

    Note: Do not use 1U-5754 Hose Assembly or 1U-5755 Hose Assembly for load sensing signal lines. The flow rate through these hoses will not compensate for the possible leakage through the control valve. Erratic readings will result.

  1. Connect the 1U-5796 Pressure Differential Gauge Group (65) to the high-pressure valve port (60) and low-pressure valve port (63) on the 4C-3582 Load Sensing Valve . The port marked "hi" (67) on the 1U-5796 Pressure Differential Gauge Group should be hooked up to the port marked "hi" (60) on the 4C-3582 Load Sensing Valve . The port marked "low" (66) on the 1U-5796 Pressure Differential Gauge Group should be hooked up to the port marked "low" (63) on the 4C-3582 Load Sensing Valve .

    Note: The ports marked "low" (63) and "sense line" (64) on the 4C-3582 Load Sensing Valve are reading the same pressure.

  1. Purge all air from the suction line. Loosen the suction hose at the pump until oil leaks from the connection. Tighten the suction hose.

  1. Fill the pump case with oil. Pour oil directly into a case drain port until the case is full.

  1. Connect an in-line flow meter to the case drain port (49). Direct the oil from the in-line flow meter back to the tank.

  1. Do not rotate the pump in the wrong direction. The correct direction of rotation will be stated on the pump. The correct direction of rotation will also be in the test specifications. The direction of rotation is viewed from the input shaft end. Visually check the pump for proper rotation.

Test Procedure

Note: The steps in the procedure correlate with the steps under the test specifications according to your specific part number.

The hydraulic oil in the test bench should meet a contamination ISO rating of 16/13 or cleaner. The oil in the test bench should be one of the following.

  • Series SAE 10W at 50 °C (122 °F) or

  • Mobil DTE-11 at 46 °C (115 °F)




    Illustration 16g01090972

  1. Start rotating the pump according to the RPM in Step 1 of the test specifications. Listen for abnormal noise. Verify flow from the pump. Verify that all connections are tight. Check for leaks around shaft seals. Check for leaks around the control valve.

  1. Slowly increase the input RPM to the value in Step 2 of the test specifications. If the actual flow is less than the value in Step 2 of the test specifications, the pump may not be mechanically feasible. Internally inspect the pump.

  1. Slowly adjust the input RPM to the value in Step 3. The discharge flow is adjusted by using the 4C-3582 Load Sensing Valve . Adjust the discharge flow according to the values in Step 3 of the test specifications. Adjust the discharge pressure according to the values in Step 3 of the test specifications. Adjust the adjustment screw for margin pressure (56) to the value in Step 3 of the test specifications. The margin pressure will be displayed on the 1U-5796 Pressure Differential Gauge (65).

    Note: The margin pressure may change as discharge pressure changes. Adjust margin pressure at Step 3 within operating conditions only.

  1. Slowly adjust the input RPM to the value in Step 4. Increase the pump discharge pressure to the value in Step 4 of the test specifications. Compare the actual value of the case drain with the values in Step 4 of the test specifications. This value is an indication of the efficiency. If the case drain is more than the value in Step 4 of the test specifications, the pump may not be mechanically feasible. Internally inspect the pump.

  1. Increase the pump discharge pressure to the value in Step 5 of the test specifications. If the high-pressure cut is not within the value in Step 5, turn the adjustment screw for the high pressure cut (55) until the actual high-pressure cut value is equal to the value in Step 5 of the test specifications. The discharge flow should be zero when the high-pressure cut is reached.

------ WARNING! ------

Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact skin.

----------------------

Reduce RPM and all pressures to zero. Remove the component from the test bench. Drain the oil from the pump. Plug all of the ports.

Test Specifications

Table 3
Part Number     Pump Rotation     Step     Input Speed     Discharge Pressure kPa (psi)     Discharge Flow Liter per minute (gpm)     Max Case Drain Flow lpm (gpm)     Margin Pressure kPa (psi)    
224-9405     CCW     1     1000     0     45 (12)            
2 1500     0     68 (18)            
3 2000 10000 (1450)     45 (12)         2400 ± 100 (348 ± 14.5)    
4 1500     25200±450 (3655±65)     68 (18)     8.8 (2.3)        
5 1500     28000±500 (4061±72)     0            

Table 4
Part Number     Pump Rotation     Step     Input Speed     Discharge Pressure kPa (psi)     Discharge Flow lpm (gpm)     Max Case Drain Flow lpm (gpm)     Margin Pressure kPa (psi)    
227-5084     CCW     1     1000     0     90 (24)            
2 1500     0     135 (36)            
3 2000 10000 (1450)     90 (24)         1400 (203)    
4 1500     22500 (3263)     135 (36)     17.6 (4.6)        
5 1500     25000 (3625)     0            

Table 5
Part Number     Pump Rotation     Step     Input Speed     Discharge Pressure kPa (psi)     Discharge Flow lpm (gpm)     Max Case Drain Flow lpm (gpm)     Margin Pressure kPa (psi)    
230-9550     CCW     1     1000     0     90 (24)            
2 1500     0     135 (36)            
3 2000 10000 (1450)     90 (24)         1600 (232)    
4 1500     22500 (3263)     135 (36)     17.6 (4.6)        
5 1500     25000 (3625)     0            

Table 6
Part Number     Pump Rotation     Step     Input Speed     Discharge Pressure kPa (psi)     Discharge Flow lpm (gpm)     Max Case Drain Flow lpm (gpm)     Margin Pressure kPa (psi)    
237-0292     CCW     1     1000     0     84 (22)            
2 1500     0     126 (33)            
3 2000 10000 (1450)     84 (22)         2800 (406)    
4 1500     23850 (3460)     126 (33)     16.4 (4.3)        
5 1500     26500 (3843)     0            

Table 7
Part Number     Pump Rotation     Step     Input Speed     Discharge Pressure kPa (psi)     Discharge Flow lpm (gpm)     Max Case Drain Flow lpm (gpm)     Margin Pressure kPa (psi)    
239-1490     CCW     1     1000     0     90 (24)            
2 1500     0     135 (36)            
3 2000 10000 (1450)     90 (24)         1400 (203)    
4 1500     22500 (3263)     135 (36)     17.6 (4.6)        
5 1500     25000 (3625)     0            

Table 8
Part Number     Pump Rotation     Step     Input Speed     Discharge Pressure kPa (psi)     Discharge Flow lpm (gpm)     Max Case Drain Flow lpm (gpm)     Margin Pressure kPa (psi)    
241-8646     CCW     1     1000     0     57 (15)            
2 1500     0     86 (22.6)            
3 2000 10000 (1450)     57 (15)         1600 (232)    
4 1500     22500 (3263)     86 (22.6)     9.5 (2.5)        
5 1500     25000 (3626)     0            

Table 9
Part Number     Pump Rotation     Step     Input Speed     Discharge Pressure kPa (psi)     Discharge Flow lpm (gpm)     Max Case Drain Flow lpm (gpm)     Margin Pressure kPa (psi)    
247-7867     CW     1     1000     0     61 (16)            
2 1500     0     91 (24)            
3 2000 10000 (1450)     61 (16)         2200 (320)    
4 1500     25200 (3655)     91 (24)     10 (2.6)        
5 1500     28000 (4061)     0            

Table 10
Part Number     Pump Rotation     Step     Input Speed     Discharge Pressure kPa (psi)     Discharge Flow lpm (gpm)     Max Case Drain Flow lpm (gpm)     Margin Pressure kPa (psi)    
258-2554     CW     1     1000     0     45 (11.9)            
2 1500     0     68 (17.9)            
3 2000 20000 (2900)     45 (11.9)         2400±100 (350±15)    
4 1500     25200±450 (3655±65)     68 (17.9)     8.8 (2.3)        
5 1500     28000±500 (4061±70)     0            

Table 11
Part Number     Pump Rotation     Step     Input Speed     Discharge Pressure kPa (psi)     Discharge Flow lpm (gpm)     Max Case Drain Flow lpm (gpm)     Margin Pressure kPa (psi)    
289-5227     CCW     1     1000     0     60 (16)            
2 1500     0     90 (24)            
3 2000 10000 (1450)     60 (16)         2200 (320)    
4 1500     22500 (3263)     90 (24)     10 (2.6)        
5 1500     25000 (3625)     0            

Table 12
Part Number     Pump Rotation     Step     Input Speed     Discharge Pressure kPa (psi)     Discharge Flow lpm (gpm)     Max Case Drain Flow lpm (gpm)     Margin Pressure kPa (psi)    
296-6714     CW     1     1000     0     60 (16)            
2 1500     0     90 (24)            
3 2000 10000 (1450)     60 (16)         2200 (320)    
4 1500     22500 (3263)     90 (24)     10 (2.6)        
5 1500     25000 (3625)     0            

Table 13
Part Number     Pump Rotation     Step     Input Speed     Discharge Pressure kPa (psi)     Discharge Flow lpm (gpm)     Max Case Drain Flow lpm (gpm)     Margin Pressure kPa (psi)    
316-8365     Canceled replaced by 376-5515    

Table 14
Part Number     Pump Rotation     Step     Input Speed     Discharge Pressure kPa (psi)     Discharge Flow lpm (gpm)     Max Case Drain Flow lpm (gpm)     Margin Pressure kPa (psi)    
331-9840     CCW     1     1000     0     100 (26.3)            
2 1500     0     150 (39.5)            
3 2000 10000 (1450)     100 (26.3)         2200 ± 100 (319 ± 15)    
4 1500     24300 (3524)     150 (39.5)     16.7 (4.4)        
5 1500     27000 ± 150 (3915 ± 22)     0            

Table 15
Part Number     Pump Rotation     Step     Input Speed     Discharge Pressure kPa (psi)     Discharge Flow lpm (gpm)     Max Case Drain Flow lpm (gpm)     Margin Pressure kPa (psi)    
376-5515     CCW     1     1000     0     130 (34.2)            
2 1500     0     195 (51.3)            
3 2000 10000 (1450)     130 (34.2)         2200 ± 100 (319 ± 15)    
4 1500     24300 (3524)     195 (51.3)     21.6 (5.7)        
5 1500     27000 ± 150 (3915 ± 22)     0            

Table 16
Part Number     Pump Rotation     Step     Input Speed     Discharge Pressure kPa (psi)     Discharge Flow lpm (gpm)     Max Case Drain Flow lpm (gpm)     Margin Pressure kPa (psi)    
376-5516     CCW     1     1000     0     100 (26)            
2 1500     0     150 (39)            
3 2000 10000 (1450)     100 (26)         2200 ± 100 (319 ± 15)    
4 1500     24300 (3524)     150 (39)     11 (2.9)        
5 1500     27000 ± 150 (3915 ± 22)     0            

Test Bench Tooling

Table 17
Part Number     Adapter Plate     Drive Adapter     Suction Adapter     Split Flange     Flange Adapter     Pilot Pressure Port     Case Drain Port    
224-9405     1U-9127     4C-4088     1U-9873     6V-0400     9U-7439     7/16-20 UNF     7/8-14 UNF    
227-5084     1U-9128     1U-9834     1U-9873     6V-0400     9U-7439     7/16-20 UNF     7/8-20 UNF    
230-9550     1U-9128     1U-9834     1U-9873     6V-0400     9U-7439     7/16-20 UNF     7/8-14 UNF    
237-0292     1U-9127     1U-9834     1U-9873     6V-0400     9U-7439     7/16-20 UNF     7/8-14 UNF    
239-1490     1U-9128     1U-9834     1U-9873     6V-0400     9U-7439     7/16-20 UNF     7/8-14 UNF    
241-8646     1U-9127     1U-9883     1U-9873     6V-0400     9U-7439     7/16-20 UNF     7/8-14 UNF    
247-7867     1U-9128     1U-9834     1U-9874     1 5/16-12     7/16-20 UNF     7/8-14 UNF    
258-2554     1U-9127     4C-4088     1U-9873     1P-5766     9U-7439     7/16-20UNF     7/8-14 UNF    
289-5227     1U-9127     4C-4088     1U-9873     6V-0400     9U-7439     7/16-20 UNF     7/8-14 UNF    
296-6714     1U-9128     1U-9834     1U-9874     1 5/16-12     7/16-20 UNF     7/8-14 UNF    
316-8365     Canceled replaced by 375-5515    
331-9840     1U-9128     1U-9834     1U-9874     1P-5767     9U-7440     7/16-20 UNF     1 1/16-12 STOR    
375-5515     1U-9128     1U-9834     1U-9874     1P-5767     9U-7440     7/16-20 UNF     1 1/16-12 STOR    
375-5516     1U-9128     1U-9834     1U-9874     1P-5767     9U-7440     7/16-20 UNF     1 1/16-12 STOR    

Caterpillar Information System:

824H Wheel Dozer, 825H Soil Compactor and 826H Landfill Compactor Power Train Compactor Wheel - Install
2004/10/25 New Plates that Eliminate Interference Problems on Machines with a Grapple Bucket are Available {5498, 6704}
446D Backhoe Loader Machine Systems Hoe Bucket - Remove and Install
824H Wheel Dozer, 825H Soil Compactor and 826H Landfill Compactor Power Train Compactor Wheel - Remove
AP-800D and BG-230D Asphalt Pavers Equipment Lowering with Engine Stopped
2004/06/28 Revised Special Instruction, REHS1634, "Reworking of Latching Transmission to Nonlatching Transmission" is Available {3030}
TH580B Telehandler Hydraulic System Boom Chain - Clean/Inspect/Lubricate
834H Wheel Dozer and 836H Landfill Compactor Power Train Torque Converter Stall - Test
834H Wheel Dozer and 836H Landfill Compactor Power Train Torque Converter Lockup Clutch Pressure - Test
834H Wheel Dozer and 836H Landfill Compactor Power Train Torque Converter Impeller Clutch Pressure - Test
446D Backhoe Loader Machine Systems Pump Drive - Remove and Install
834H Wheel Dozer and 836H Landfill Compactor Power Train Fill Time for the Transmission Clutch (Electronic Technician) - Calibrate
Bench Test Procedure for Hydraulic Piston Pumps{5070} Bench Test Procedure for Hydraulic Piston Pumps{5070}
TK370, TK371, TK380 and TK381 Wheel Feller Bunchers Machine Systems Winch
PS-360C Paving Compactor Indicators and Gauges - Test
AP-800D and BG-230D Asphalt Pavers Machine Systems Machine Preparation for Troubleshooting
AP-800D and BG-230D Asphalt Pavers Hydraulic Screed Counterbalance System
824H Wheel Dozer, 825H Soil Compactor and 826H Landfill Compactor Power Train Cleaner Bar - Remove
PS-150C Pneumatic Compactor Propel System Parking Brake Release Pressure - Test
CB-334E and CB-335E Vibratory Compactors Machine Systems Front Frame and Rear Frame - Connect
PS-360C Paving Compactor Radiator and Hydraulic Oil Cooler - Clean
PS-360C Paving Compactor Cooling System Coolant Level - Check
Installing the 233-5873 Heater and Air Conditioner Kit {7304, 7320} Installing the 233-5873 Heater and Air Conditioner Kit {7304, 7320}
789C Off-Highway Truck Suspension Cylinder Valve (Suspension Cylinder Charging)
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