Rear Servo Assembly

Rear Servo Assembly, Renew

^ Raise hood and fit fender cover.

^ Raise the vehicle on a ramp.

^ Drain the transmission lubrication system.

^ Remove the fluid pan.

^ Remove the fluid filter.

^ Remove the transmission internal harness.

^ Remove the internal lubrication pipe.

^ Remove the manual detent spring assembly.

^ Remove the internal dipstick stop.

^ Remove the valve body and accumulator assembly; check the condition of the gasket.

^ Release and remove rear servo cover securing bolts and remove rear servo cover.

^ Remove rear servo gasket and discard.





^ Remove rear servo piston assembly (Fig. 1) and place aside.

^ Clean relevant parts and faces and inspect all seals for condition.





^ Fit stepped gauge pin JO 193 (Fig. 2) to rear servobore.





^ Fit and align rear band; apply pin checking tool JD 192 (2 Fig. 3) to the main case. Note the orientation.

^ Fit and tighten the checking tool to the main case using two of the servo cover securing bolts.

Note: Ensure the stepped gauge pin (1 Fig. 3) moves freely in the tool and pin bore.

^ Apply torque to the nut on the checking tool - 34Nm.

^ From the gauging steps located on the gauge pin, determine the band apply pin from the selection chart.

^ Release torque from the checking tool nut.

^ Release and remove the checking tool to main case securing bolts.

^ Remove the checking tool and place aside.

^ Remove the stepped gauge pin and place aside.

^ Place new rear servo assembly to front.

^ Remove servo apply pin retaining clip.

^ Remove apply pin and spring assembly.

^ Remove apply pin from washer, spring, retainer assembly and place pin aside.

^ Fit new selected apply pin to washer, spring, retainer assembly.

^ Fit apply pin assembly to rear servo piston assembly.

^ Fit and seat servo apply pin retaining clip.

^ Lubricate rear servo assembly.

^ Fit rear servo assembly to main case.

^ Fit new rear servo cover gasket.

^ Fit and align rear servo cover to main case.

^ Fit and tighten rear servo cover securing bolts, tightening the bolts evenly to prevent cover distortion.

^ Refit the valve body assembly, checking that all nine checkballs are in their correct positions.

^ Refit the internal dipstick stop.

^ Refit the manual detent spring.

^ Refit the internal lubrication pipe.

^ Refit the internal harness O-ring seal and multiplug pin socket.

^ Refit the fluid filter.

^ Refit the fluid pan.

^ Lower the vehicle on the ramp.

^ Refill the transmission with fluid.

^ Lower the hood.