TM-9-2320-285-24-2

TRUCK TRACTOR, YARD TYPE, 43,500 LB GVW, DED, 4X2, ARMY MODEL M878A1

TECHNICAL MANUAL; ORGANIZATIONAL, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL

OCTOBER 1985

TM-9-2320-285-24-2 - Page 114 of 698

TM 9-2320-285-24-2

13-17. TRANSMISSION MAINTENANCE (CONT)

b. Speed Shift Adjustments (cont).

STEP

LOCATION

ITEM

ACTION

REMARKS

ADJUSTMENT (cont)

NOTE

If more than one shift signal valve spring requires adjustment, it may be necessary to

adjust the spring force on the modulator valve one position in the same direction as

adjustment for signal valves.

If all upshift points are either too high or too low, by

approximately the same amount, adjust the modulator valve only.

2

Modulator

Adjusting ring

Adjust

Use adjusting ring tool

valve

J-24314

3

Trans-

a

Oil pan

Clean and

Para 2-41b

mission,

install

underside

b

Transmission

Install

Para 2-41b

fluid

4

Tractor,

Rear platform

Install

Para 2-65c

rear

3-108