FINAL DRIVE REPAIR (Sheet 29 of 30)
threads of plugs (AR).
Using 1/2 inch drive hinged bar or 5/8 inch allen
wrench as necessary, install four plugs (AR) in
Using 3/16 inch alien wrench, install plug (AS) in
Using 7/16 inch wrench, install air pressure valve
or vent line elbow (AT) in case (U).
Fill final drive with lubricant (LO 9-2350-222-12).
Inspect for oil leaks. Correct as necessary.
Perform axial play and backlash tests.
AXIAL PLAY AND BACKLASH TESTS
Properly support final drive (A) to
prevent movement and possible
injury to personnel.
Secure C-clamp to pinion shaft (B) with care to
prevent damage to pinion shaft spline.
Secure dial indicator to final drive stud (C) with
dial resting on pinion shaft (B). Set dial to zero.
Using C-clamp as a handle, pull pinion shaft (B)
up and push down and record dial indicator
reading. Repeat procedure four times.
If all measurements are between 0.011 to 0.077 inches (0.279 to 1.956 mm), remove dial indicator and go to step
5. If all measurements are not within tolerance, tag final drive (A) "UNSERVICEABLE (NO AXIAL END PLAY)"
and return final drive (A) to supply for depot rebuild.
Go on to Sheet 30
Change 5 7-29