TM-9-2320-366-34-4

M1083 SERIES, 5 TON, 6x6, MEDIUM TACTICAL VEHICLES (MTV)

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE; VOLUME NO. 4 OF 4

AUGUST 2005

CHANGE 2

TM-9-2320-366-34-4 - Page 337 of 796

TM 9-2320-366-34-4

d. Bearing Preload Adjustment.

(1) Rotate transfer case housing (1) until transfer case cover

(2) is facing up.

NOTE

Center idler gear, lower drive gear, and upper

drive gear end play readings are measured the

same way. Perform the following steps to

measure end play for all three gears.

(2) Install dial indicator on transfer case cover (2).

(3) Adjust dial indicator to read zero.

NOTE

Upward force on bearing collar is required to

obtain end play reading. For lower and upper

drive gear bearings, apply upward force from the

bottom side. For idler gear bearing, a bolt and

large washer are installed in threaded end of

idler gear shaft.

Upward force is applied by

lifting up on the washer.

(4) Apply upward force sufficient to fully seat bearing (3).

(5) The dial reading at this point is the preliminary end play

which exists with the shim(s) of 0.076 in. (0.193 cm).

(6) Measure end play of bearing (3). Reading should be

0.001-0.005 in. (0.002-0.012 cm).

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