Chevrolet 30 Series 1967 Service Manual page 512

ELECTRICAL—BODY AND CHASSIS 12-12
. To install, reverse removal procedure.
8
40-60 Conventional Cab Models (Fig. 17)
.
Disconnect battery ground cable.
1
.
2
Remove choke control knob and bezels.
3.
Remove windshield wiper knob and bezel nut.
4.
Remove light switch rod and bezel.
5.
Disconnect speedometer cable and chassis wiring
harness connector at rear of instrument panel.
.
6 Disconnect air pressure and oil pressure gauge feed
pipes.
7.
Loosen mast jacket upper support clamp bolts and
lower mast jacket to prevent interference with lower
edge of instrument cluster.
CAUTION:
Protect mast jacket with suitable
covering.
. Remove cluster retaining screws from face of as­
8
sembly and remove cluster assembly from console.
9. To install, reverse removal procedure.
Flatface Cowl Models (Fig. 18)
1. Disconnect battery ground cable.
2. Disconnect electrical connectors and oil pressure
pipe.
3. Remove three screws attaching cluster housing to
dash panel.
4. Pull cluster from opening in dash panel.
5. To install, reverse removal procedure.
Fig. 17 - Instrument Cluster Assembly - Conventional Cab
Chevy Van
1. Disconnect battery ground cable.
2. Disconnect speedometer cable at speedometer head.
3. Remove two nuts attaching cluster to dash panel.
Cluster may now be pulled clear of dash panel.
4. Disconnect all indicator and illuminating bulb sock­
ets, carefully noting their location for proper rein­
stallation. Remove cluster.
5. To install, reverse removal procedure.
Tilt Cab Models (Fig. 19)
1. Disconnect battery ground cable.
2. From under dash, disconnect speedometer cable and
wiring.
3. Disengage cluster retaining clips by inserting Tool
J-7900 in provided slots as shown in Figure 19 and
remove cluster.
4. To install, reverse removal procedure.
INDICATOR AND ILLUMINATING
BULB REPLACEMENT
10-60 Conventional Cab Models
1. Turn bulb holder counterclockwise to remove from
the cluster housing.
2. Pull bulb straight out to remove from holder.
3. Install replacement bulb in holder, press inward to
lock in place.
4. Insert holder into housing, with lugs on holder enter­
CH EVR O IET TRUCK SERVICE MANUAL