MOUNT, RUBBE 0772830 - Caterpillar

(C) Pressure tap for reverse clutch. (D) Pressure tap for forward clutch.
(H) Pressure tap for lubrication and cooling.3. At pressure tap (C) and (D) connect a pressure gauge [4000 kPa (580 psi)] to the hose group.4. At pressure tap (H) connect a pressure gauge [400 kPa (60 psi)] to the hose group.5. Start and run the engine at LOW IDLE speed.6. With the transmission gear shift lever in NEUTRAL, shift the forward/reverse shuttle to FORWARD. The pressure on the forward clutch gauge must be 1410 100 kPa (205 15 psi). The lubrication gauge must be 170 70 kPa (25 10 psi). The reverse clutch gauge must be 0 kPa (0 psi).7. Now shift the forward/reverse shuttle to REVERSE, transmission gear shift lever in NEUTRAL. The reverse clutch pressure shall be within 25 kPa ( 3.5 psi) of that in FORWARD, at the same engine speed. The lubrication gauge must be 170 70 kPa (25 10 psi). The forward clutch gauge must be 0 kPa (0 psi).8. When the test is complete, put the forward/reverse shuttle in NEUTRAL, engage the parking brakes and stop the engine. Remove test equipment. Problem 1: Both forward and reverse clutch pressure too low. Probable Cause:a. System relief valve spring weak.b. Oil level low.c. Oil filter (1) is plugged. Replace dirty oil filter.d. Oil pump (10) failure.e. Neutralizer button on gear shift lever or tilt control lever shorted causing transmission control solenoid valve to de-energize.f. Clutch piston seals bad. Problem 2: Either forward or reverse clutch pressure too low. Probable Cause:a. Faulty solenoid.b. Clutch piston seals bad.c. Faulty or missing seals on input shaft.Transmission Shift Blockout Adjustment
(1) Gear shift lever.1. Place shift lever (1) into first or second gear.
(2) 9S-4191 plug and 3J-1907 seal. (A) Torque converter housing. (B) Transmission housing.2. Remove and discard 9S-4191 plug (2), and 3J-1907 seal.
Transmission Shift Blockout Adjustment.
(3) Lockout plug. (4) Lockwire. (5) Lockout washer. (6) Seal.3. Apply sealant to thread of lockout plug (3).4. Assemble lockout washer (5) and seal (6) to lockout plug (3).5. Install assembled components to transmission housing (B).6. Check for free movement of the shift lever into third gear.7. Seal the head of the lockout plug (3) to lockout washer (5) with 4.0 dm (16.0 in) of lockwire (4).Troubleshooting The All-Wheel Drive System
To prevent possible injury, do the procedure that follows before testing and adjusting the differential, rear axle and brakes:
1. Move the machine to a smooth horizontal location. Move away from working machines and personnel. Stop the backhoe loader engine.2. Permit only one operator on the machine. Keep all other personnel either away from the machine or in view of the operator.3. Activate the parking brakes. Lower the buckets or implements (loader and backhoe) and stabilizers to the ground.Visual Checks
Before any operational checks are made to the all-wheel drive, visually inspect all components.1. Check the electrical connections.2. Check for oil leaks around the all-wheel drive solenoid and front drive output shaft, the differential and the