Chapter 6
Differential Axle
Table of Contents
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
TORQUE SPECIFICATIONS . . . . . . . . . . . . . . . . . . 2
SPE
CIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
REPAIRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
A
xle Removal and Installation . . . . . . . . . . . . . . . 3
Introduction
The Reelmaster
®
223-D and 5100-D uses a Dana
Hydrostatic Axle, model GT-20. The differential and axle
form the final drive of the power train (Fig. 1).
The differential has a heavy duty case with automotive
t
ype, cut gears that rotate on tapered roller bearings.
Single-row, pre-set, tapered roller bearings are used on
the outside ends of the axle shafts.
The entire drive line of the axle assembly is made of
all
oy steel. The axle has a die-cast aluminum housing
that also serves as the hydraulic oil reservoir.
Power is transmitted from the transmission output gear
t
o the pinion spur gear. The pinion spur gear transmits
power directly to the differential drive gears, to turn the
axles and the wheels.
The differential axle has a one-piece axle shaft with the
f
lange being part of the axle stem (Fig. 1A).
Axle Shaft Disassembly
and
Wheel Bearing Service . . . . . . . . . . . . . . . . . 4
Dif
ferential and Housing Disassembly . . . . . . . . . 8
Differential and Housing Reassembly . . . . . . . . 14
Figure 1
Figure 1A
Reelmaster
®
5100-D Page 6 - 1 Rev. A Introduction
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