Contents: Checking the oil level ↳ Checking the selector cable… ↳ Checking the forced reverse gear… ↳ Checking oil pressure ↳
Before this check, make sure that the engine fuel and ignition systems are adjusted correctly, adjust them if necessary. The oil in the gearbox must be at operating temperature. Check the oil level and top up if necessary. Perform the following checks:
Checking the oil level
Check when the oil is at operating temperature. Place the vehicle on a level, horizontal surface, apply the parking brake and press the brake pedal. With the engine idling, move the selector lever to all positions three times in succession. Then move the selector lever to position "P" and wait at least one minute. Without stopping the engine, remove the dipstick and check the oil level, which should be between the two marks. If necessary, add oil through the dipstick tube. Dark brown or black oil indicates wear of the clutches or band brake.
Checking the selector cable adjustment
Set the selector lever to position "D" and hold it in this position. Loosen the nut securing the cable to the selector lever on the gearbox and make sure that the lever axis is in position "D", tighten the nut.
Checking the forced reverse gear shift rod
Loosen the adjusting screw 1 (Fig. 3.47), installed on the gear shift valve axis so that a gap of 2–3 mm is formed between it and the stop.
Check and, if necessary, adjust the engine idle speed. Tighten the adjusting screw, leaving a gap of no more than 0.1 mm between it and the stop. Adjust the vibration damper (Fig. 3.48).
To do this, tighten the shock absorber until a gap of 2 mm (pos. 2) is obtained, measuring it with a feeler gauge. Bring the drive lever 5 to the plastic tip of the shock absorber 4. Secure the lever in this position with the screw and nut 6. Lock the shock absorber with nut 1. Mark the position of the shock absorber and tighten it four more turns to create a preliminary tension. The total gap, including the previous 2 mm. should be equal to 7 mm. Tighten the nut 1 of the shock absorber lock.
Checking oil pressure
Unscrew the plug on the front wall of the gearbox housing, under the flange of the valve box cover. Screw the hose nipple of the 17.014 control pressure gauge into the hole and measure the oil pressure at idle and with the accelerator pedal pressed all the way down and the parking brake fully applied (no more than 5 sec) for all positions of the selector lever. The pressure should correspond to that specified in table 3.4. Disconnect the pressure gauge, install it in place and tighten the plug.
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