Table 1-1. Applicable Wear Limits and Clearances

TM 10-3930-609-35

Accelerator controller potentiometer resistance with second switch actuated

(shaft rotated approximately 7 degrees) ...................................................................... 3,500 to 6,000 ohms

Accelerator controller potentiometer resistance with second switch actuated

(shaft rotated approximately 27 degrees)..................................................................... 200 ohms max.

Directional control switch type ......................................................................................... double pole-double throw

Pump relay type .............................................................................................................. single pole-single throw

Pump relay coil resistance at 70 .................................................................................. 28.2 ohms 10%

Master switch relay type .................................................................................................. single pole-single throw

Master switch relay coil resistance at 70 ...................................................................... 46.9 ohms 10%

Forward and reverse relay type ....................................................................................... two single pole-double throw

Forward and reverse relay coil resistance at 70 (each coil) .......................................... 28.2 ohms 10%

Accelerator relay type ..................................................................................................... single pole-single throw

Accelerator relay coil resistance at 70 ........................................................................... 46.9 ohms 10%

c. Hydraulic Components Characteristics and Ratings.

Hydraulic fluid type .......................................................................................................... per MIL-H-606

Hydraulic fluid capacity ................................................................................................... 5 gallons

Hydraulic system pressure relief setting .......................................................................... 1400 psig

Hydraulic pump capacity at 1,200 rpm and 1,000 psig...................................................... 3.40 gpm

Hydraulic pump rotation (facing shaft) .............................................................................. counterclockwise

Direction control valve type ............................................................................................. 2 spool

Tilt cylinder bore ............................................................................................................. 3 inches

Tilt cylinder stroke ........................................................................................................... 3.250 inches

Tilt cylinder closed length ................................................................................................ 13.531 inches

Lift cylinder extended length ............................................................................................ 109.250 inches

Lift cylinder closed length . ............................................................................................. 48.375 inches

d. Mechanical Components Characteristics and Ratings.

Steering gear ratio ........................................................................................................... 21.3:1

Steering wheel rotation (lock to lock) ............................................................................... 5.44 turns

Drive axle type ................................................................................................................ single reduction, ring and pinion

Drive axle overall reduction (including adapter)................................................................ 20.8:1

Drive axle pinion gear backlash ....................................................................................... 0.004 to 0.012 inch

Drive axle bevel gear reduction ....................................................................................... 5.062:1

Drive axle brake type ...................................................................................................... hydraulic drum type

e. Repair and Replacement Standards.

Table 1-1 lists wear limits and clearances applicable during overhaul of

components.

Table 1-1. Applicable Wear Limits and Clearances

Drive axle-axle shaft runout .............................................

0.010 inch maximum, total indicator reading.

Drive axle-differential bearings .........................................

15 foot pounds drag due to preloading.

Adapter-input gear backlash ..............................................

0.019 to 0.046 inch.

Drive axle- axle bearings ..................................................

0.000 to 0.006 inch preload.

Motor brake shoes ............................................................

1/16 inch minimum thickness.

Service brake shoes ......................................................... .

1/16 inch minimum thickness.

Steering gear - lash adjuster .............................................

0.002 inch end play maximum.

Travel motor-brushes .......................................................

3/4 inch minimum length.

Travel motor-armature commutator ..................................

2.375 inches minimum diameter, 16 microinch

rms surface roughness, 3/64 inch deep by

0.030 inch wide undercutting.

Pump motor-brushes ........................................................

3/4 inch minimum length.

Pump motor-armature ......................................................

2.125 inches minimum diameter, 16 microinch

rms surface roughness, 3/64 inch deep by

0.025 inch wide undercutting.

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