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TM 55-4920-405-13&P
2.
Cut back the insulation on the
(a) Check the tags you attached when you
removed these items.
wire that is to be replaced and on
the replacement wire about 1/2
(b) Install each of these items in the re-
inch.
verse order of removal.
3.
Tin each end of the exposed wire,
---
---
and cut one half the diameter of
CAUTION-
---.
each soldered end.
Place the cut halves on one end of
4.
Use care to avoid bending or denting
the new and old wires end to end
hydraulic  tubing.
on top of each other, and solder
(2) Hydraulic Pump. To install hydraulic
the two wires together.
Cut away stray ends to make a
5.
pump (5, figure 4-5), proceed as follows:
smooth surface.
Disconnect the opposite end of
6.
NOTE
the leadwire that is to be re-
moved, and gently pull that end.
The hydraulic pump must be installed be-
fore the fluid reservoir is installed.
This will cause the new wire to
follow the wire being replaced
into the wiring harness. Continue
Position the hydraulic pump on the
(a)
test stand chassis so that the marks
pulling until the new wire extends
the required distance at each end
you made during hydraulic pump re-
moval line up.
of the wiring harness.
Secure the hydraulic pump to the
(b)
7.
Cut the new leadwire to length,
chassis with four bolts.
and trim back the insulation far
Slide the coupling cover over the shaft
(c)
enough to attach lugs.
of the hydraulic pump so that the gears
Tin the exposed portion of the
8.
mesh.  Install the snap ring on the
wire, and attach lugs at the ends
engine side of the coupling.
of the leadwire.
(d)
Connect FLOW INDICATOR GPM (11,
Connect the lugs to the proper
9.
figure 2-1) to the hydraulic pump.
connection points.
(e)
Connect all hydraulic tubing and fit-
tings removed during disassembly of
(8) Starter and Ignition Switches. To install
the hydraulic pump.
STARTER switch (5, figure 2-2) or IGNI-
TION SWITCH (2), proceed as follows:
(3)
Volume Control.  To install VOLUME con-
trol (14, figure 2-1), proceed as follows:
(a)
Make sure that a hex nut and external
tooth lockwasher are on the switch
NOTE
shaft.  Push the switch shaft through
the hole in the control panel from the
The hydraulic pump must be installed be-
back side.
fore you install the VOLUME control.
(b)
Install the round knurled nut on the
switch shaft, and tighten this nut only
Install the extension shaft in the hy-
(a)
until the nut is flush with the end of
draulic pump volume adjusting screw,
the switch shaft.
and tighten the setscrews.  (See fig-
(c)
Hold the switch in its proper position.
Tighten the hex nut against the rear of
Slide the sleeve over the extension
(b)
the control panel.
shaft, and screw the sleeve onto the
(d)
Check the tags on the leadwires you
hydraulic pump. Tighten the set-
disconnected when removing the
screws in the sleeve.
switch.  Connect the leadwires to the
Working from the front end of the con-
(c)
correct switch terminals.
trol panel, screw the locking lever on-
to the sleeve.
(9) Starter Solenoid.  To install the starter
Install the washer.  Install the key in
(d)
solenoid, proceed as follows:
the keyway in the extension shaft. and
install the VOLUME control handwheel
(a) Attach the starter solenoid to the back
over the key onto the extension shaft.
side of the start-up control panel with
Install and tighten the nut that secures
(e)
screws and lock washers.
the VOLUME control handwheel.
(b) Attach the electrical cables to the
starter solenoid terminals with nuts.
(4) Compensator Control. To install PRES-
SURE COMPENSATOR (16, figure 2-1),
proceed as follows:
b . Hydraulic System.
NOTE
The hydraulic pump must be installed be-
(1) Tubing, Hoses, and Fittings. To install
fore you install the PRESSURE
hydraulic lines, tubing, and fittings, pro-
COMPENSATOR.
ceed as follows:
4-40

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