Chevrolet 10 Series 1970 Service Manual page 571

tran sm ission in neutral
pinned in neutral position attach switch rod to switch.
6. Tighten tran sm ission le v e r extension bolt to 12-16
ft. lbs. torque and rem ove pin.
7. Connect switch w irin g to engine w irin g harness and
in stall w irin g retaining clip bolt.
8. Check operation of switch and lo w e r veh icle.
B ACKING LAMP SWITCH REPLACEMENT
Switch Located on M ast Jacket
1. D isconnect w irin g at sw itch term in als.
2. R em ove sw itch attaching s c re w s and switch fro m
mast jacket.
3. P ositio n replacem ent switch to m ast jacket, install
retaining screw s and connect w irin g to switch t e r ­
m inals.
NOTE: P o sitio n gea r shift in neutral b efore
assem blin g switch to m ast jacket.
4. Check operation of switch.
G e n e r a l D e s c r i p t i o n ...................................................................... ... 12-9
Service O p e ra tio n s ...................................................................12-9
Ignition Switch R e p la c e m e n t................................................12-9
Instrument C lu s t e r ................................................................12-10
R e m o v a l................................................................................12-10
In s t a lla t io n ...................................................................... ...12-10
Indicator and Illuminating Bulb R ep la cem en t................12-11
Laminated Circuit R e p la c e m e n t...................................... 12-11
Speedometer R e p la c e m e n t................................................ 12-13
Speedometer Cable Replacement or Lubrication . . . .
A ll instrum ents and gauges a re installed in the instru­
ment cluster. The entire clu ster may be rem oved fro m
v e h ic le fo r s e rv ic in g of the instruments and gauges.
Illum inating and indicator lamps may be replaced without
rem ovin g the clu ster fro m the veh icle. On m odels with a
lam inated die cut circu it the bulbs are installed in plastic
holders which lock into the clu ster housing, on a ll other
IG N ITIO N SWITCH REPLACEMENT
1. Raise hood and disconnect battery ground cable from
battery.
2. Rem ove lock cylinder by positioning switch in " A C C "
position and in sertin g w ire in sm a ll hole in cylinder
position and the switch
INSTRUMENTS AND GAUGES
INDEX
Page
12-13
GENERAL DESCRIPTION
SERVICE OPERATIONS
ELECTRICAL-BODY AND CHASSIS 12-9
F ig . 8- N e u tra l S a fe ty S w itc h - P M odels
Fuel Gauge R ep la cem en t......................................................12-13
Temperature Indicator L ig h t............................................ 12-13
Temperature Gauge R e p la c e m e n t................................... 12-13
Temperature Sender Unit R e p la ce m e n t..........................12-15
Oil Pressure Indicator Light.............................................12-15
Oil Pressure Gauge R e p la ce m e n t...................................12-15
Oil Pressure Sender Unit R eplacem ent......................... ...12-15
Generator In d icator.............................................................12-15
Am m eter Gauge R e p la c e m e n t......................................... 12-15
A ir Pressure Gauge R ep la cem en t................................... 12-15
m odels the lamp sockets a re
quickly snapped in o r out of position.
R egular maintenance is not required on the instrument
clu ster o r its components other than maintaining clean,
tight e le c tr ic a l connections, replacing d efective parts and
keeping the speedom eter cable p ro p e rly lubricated.
face. Push in on w ire to depress plunger and con­
tinue to turn key counter-clockw ise until lock c y lin ­
der can be rem oved.
3. Rem ove the m etal ignition switch nut.
4. Pull the ignition switch out fro m under the dash and
rem ove the w irin g connector.
Page
clip retained and can be
CHEVROLET TRUCK SERVICE MANUAL