140H Test de Presiones

Testing and Adjusting 120H, 12H, 135H, 140H, 143H, 160H and 163H Motor Graders Power Train

Transmission Pressures - Test SMCS - 3030-081-PX; 3073-081-PX; 3074-081-PX S/N - 1AL408-UP S/N - 2AN104-UP S/N - 2FM400-UP S/N - 2GS360-UP S/N - 2HS380-UP S/N - 2WR642-UP S/N - 2ZK2392-UP S/N - 3AS450-UP S/N - 3GM80-UP S/N - 3YK267-UP S/N - 4ER500-UP S/N - 4MK404-UP S/N - 4XM1396-UP S/N - 5AK156-UP S/N - 5FM800-UP S/N - 5HM1150-UP

Shutdown SIS

Previous Screen

Product: MOTOR GRADER Model: 140H MOTOR GRADER 5HM Configuration: 140H Motor Grader 5HM00001-UP (MACHINE) POWERED BY 3306B Engine

Media Number -SENR9159-08 Publication Date -01/04/2008 Date Updated -01/04/2008

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Page 1 of 7140H Motor Grader 5HM00001-UP (MACHINE) POWERED BY 3306B Engine(SEBP2488 - 99) -...

06/01/2012https://127.0.0.1/sisweb/sisweb/techdoc/techdoc_print_page.jsp?returnurl=/sisweb/sisweb/productse...

S/N - 6TM366-UP S/N - 6YN1-UP S/N - 7MM249-UP S/N - 8JM280-UP S/N - 8MN500-UP S/N - 8WN350-UP S/N - 9EJ510-UP S/N - 9JM350-UP S/N - 9TN400-UP S/N - 9YR330-UP S/N - 9ZN205-UP S/N - BDJ1-UP S/N - XZH1-UP S/N - XZJ1-UP S/N - XZK1-UP

When testing and adjusting the transmission and power train, move the machine to an area clear of obstructions, with safe exhaust ventilation for the exhausts. Sudden movement of the machine or release of oil under pressure can cause injury to persons on or near the machine. To prevent possible injury, do the procedure that follows before testing and adjusting the transmission and power train.

Personal injury can result from spring force released when removing cap screws.

Internal spring force will be released when cylinder assembly cap screws are removed causing injury.



1. Stop the machine. Engage the parking brake and turn off the engine.

Always restrain cover as cap screws are loosened.

Follow the established procedure in the Service Manual to service these parts.

NOTICECare must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.

Refer to Special Publication, NENG2500, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.

Dispose of all fluids according to local regulations and mandates.



2. Remove guard (2) from transmission control valve (1) . This will provide access to the control.

Illustration 1 g01373894(1) Transmission control valve

(2) Guard



3. Put blocks in front of the wheels and behind the wheels of the machine. Remove the differential drive shaft.

4. Remove caps (3) and install 6000 kPa (870 psi) pressure gauges on pressure tap (D) and pressure tap (G) .

5. Operate the engine at low idle either in the PARK position or NEUTRAL position. Record the gauge pressures. Pressure tap (D) is clutch 8 and pressure tap (G) is clutch 5. Remove the pressure gauges and replace caps (3) .

6. Remove caps (3) and install 6000 kPa (870 psi) pressure gauges on the pressure tap (B) , pressure tap (F) and

Illustration 2 g01373893Pressure Tap Port

(3) Caps



pressure tap (H) .

7. Operate the engine at low idle in FIRST GEAR FORWARD. Record the gauge pressures. Pressure tap (B) is clutch 1. Pressure tap (F) is clutch 6 and pressure tap (H) is clutch 7. Remove the pressure gauges and replace caps (3) .

8. Remove caps (3) and install 6000 kPa (870 psi) pressure gauges on pressure tap (C) and pressure tap (E) .

9. Operate the engine at low idle in SECOND GEAR FORWARD. Record the gauge pressure. Pressure tap (C) is clutch 2 and pressure tap (E) is clutch 4. Remove the pressure gauges and replace caps (3) .

10. Remove cap (3) and install a 6000 kPa (870 psi) pressure gauge on the pressure tap (A) .

11. Operate the engine at low idle in the FIRST GEAR REVERSE position. Record the gauge pressure. Pressure tap (A) is clutch 3. Remove the pressure gauges and replace cap (3) .

12. Refer to Table 2 for the correct pressures. If an adjustment is needed, refer to Systems Operation, Testing and Adjusting, "Initial Pressures - Test and Adjust".

Table 1

Test port Minimum Pressure (1) Maximum Pressure (1)

A-3 2145 kPa (311 psi)

2365 kPa (343 psi)

B-1 2080 kPa (302 psi)

2275 kPa (330 psi)

C-2 2255 kPa (327 psi)

2445 kPa (355 psi)

D-8 2570 kPa (373 psi)

2765 kPa (401 psi)

E-4 1855 kPa (269 psi)

2075 kPa (301 psi)

F-6 2580 kPa (374 psi)

2760 kPa (400 psi)

G-5 2710 kPa (393 psi)

2875 kPa (417 psi)

H-7 2525 kPa (366 psi)

2815 kPa (408 psi) ( 1 ) All pressures are taken at low idle and at 51 C (123 F).

Table 2

Test port Minimum Pressure Maximum Pressure



13. Stop the engine. Install the differential drive shaft and engage the parking brake. Replace all the covers and the guards.

A-3

B-1

C-2

D-8

E-4

F-6

G-5

H-7

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Fri Jan 6 11:04:04 UTC-0300 2012



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140H Test de Presiones