CHRYSLER SERVICE MANUAL
ELECTRICAL SYSTEM—135
travel and block it in that position. Remove
vertical bar pins attaching vertical power unit
shaft and sleeve to front seat frame. Remove
power link pin and disconnect motor to terminal
block lead wires. Remove floor pan to seat
guide attaching cap screws and guide from
seat assembly.
b.
Installation
When replacing vertical power unit, adjust
power unit by turning unit coupling. Install
rear of unit on rear pin and secure. Raise seat
manually, install front end of unit into torque
bar, attach clevis pin, and secure. The length
of unit may be varied by turning coupling
manually. Install wires on terminal block and
connect battery. Check operation of seat and
replace seat cushion.
72.
REPLACING HORIZONTAL POWER UNIT
AND SHAFT ASSEMBLY
Remove front seat cushion, disconnect battery
and seat adjuster control wires to relays. Re-
move horizontal power unit retaining snap
rings,
and disconnect relay lead wires to motor.
Remove horizontal power unit assembly. To
facilitate removal of horizontal bar clevis pins,
lower seat to its lowest point before attempting
to remove unit.
73.
REMOVAL OF SEAT TRACKS
Seat tracks are serviced only as an assembly
and so are individual torque rods. However,
either right or left seat track can be replaced
independently. Remove seat jack assemblies
and two rear and front retaining bolts that
hold seat track to floor pan. Slide seat track
outward, causing it to disengage from two hor-
izontal torque rods. When removing right
track, it will be necessary to disengage one con-
necting link from a pivot pin.
74.
INSTALLATION OF SEAT TRACKS
Engage seat torque rods in seat track assembly.
Install rear seat track retaining screws, but do
not tighten. Install seat jacks and operate seat
in all directions to obtain proper alignment be-
tween seat tracks and horizontal torque rods.
Tighten front seat track retaining screws,
raise seat, and tighten rear seat track re-
taining screws. The vertical power unit shaft
is equipped with a ball and nut and should be
lubricated. The horizontal power unit shaft is
equipped with a friction nut that is pre-greased
and requires no further lubrication.
75. WIRING DIAGRAMS
For wiring diagrams of the various electrical
circuits, refer to Figure 41 through 48.
SERVICE DIAGNOSIS
BATTERIES
76.
BATTERY DISCHARGED
a. Charge battery by slow charging. Test
circuit resistance and regulator.
b.
Investigate use of accessories and type of
driving car is subjected to.
c. Check for short circuits.
77.
BATTERY DOES NOT RETAIN WATER
a. Check voltage regulator.
b.
Check for broken case.
c. Reseal joints between cell covers and case.
78.
BATTERY DOES NOT TAKE CHARGE
a. Add water to adjust electrolite to proper
level.
b.
Test battery capacity after 24 hours
charge at four amperes.
c. Dissolve sulphated condition by charging
at one ampere per positive plate per cell (or
for 24 hours at four amperes) until charging
rate does not rise for two successive readings
taken at hourly intervals.
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