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Figure 3-73. Power steering pump motor, exploded view.
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TM-10-3930-620-34 Truck Lift Fork Solid Rubber Tired Wheels 6000 Capacity 180 Inch Lift Manual
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Figure 3-74. Steer axle exploded view.
f. Test.
3-41. Steer Axle
(1) Check the armature for shorts by placing it
a. Removal. Remove the steer axle according to
on a "growler" and with a steel strip or a hacksaw blade
held on armature core, rotate armature. If blade vibrates,
d. Disassembly. Disassemble according to figure 3-
armature is shorted in area of the core below the
74 and as follows:
vibrating blade. Copper or brush dust in slots between
(1) Remove mounting blocks (47) from steer
commutator bars sometimes causes shorts which can be
axle and press off the bushings (48).
eliminated by cleaning out slots. Shorts at crossovers of
(2) Remove spindles (38 and 39) by pressing
coils at core end can often be eliminated by bending wire
out spring pins (34), king pins (36), and needle bearings
slightly and reinsulating exposed bare wire. If shorts
(40).
cannot be eliminated, armature must be replaced.
(3) To remove tie rods, remove cotter pins (2),
(2) To test armature for grounds, place one
and loosen adjusting plugs (10 and 18).
probe of test lamp on armature core or shaft and place
(4) To remove pivot arm, remove lubrication
the other probe on each commutator bar in turn. If lamp
fitting (25), elbow (26), washers (27 and 28), wedge bolt
lights, armature is grounded and must be replaced.
(24) and pin (29). If it is necessary to replace a ball stud,
(3) To test for grounded fields, place one
file off staked area of stud before removing it.
probe of test lamp on field frame and the other probe on
Caution:
Make  certain
field terminal. If lamp lights, field coils are grounded and
all staked area has been filed off
must be replaced if ground cannot be located and
before removing stud.
repaired.
c. Cleaning and Inspection.
(1) Clean parts with a solvent such as mineral
spirits, and dry with compressed air. Check all parts for
wear and damage.
3-85

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