Spicer Tandem Drive Axle Dual Range & Double Planetary 34,000-45,000 lbs - Manual (Page 72)

Air Shifter Valve
(Optional Axle Range Shifter Valve Mounted on Gear Shift Lever).
CAUTION:
AIR SUPPLY TO
VALVE MUST BE SHUT OFF BEã
FORE THE VALVE IS SERVICED.
The shifter valve can be disassem-
bled for service without removing
the assembly from the gear shift
lever.
1.
Remove screw from cover,
then lift off cover and remove
shifter knob, knob spring, shifter
plate, "O" ring guide and "O"
ring from valve housing,
2.
If housing requires replace-
ment, disconnect air lines, loosen
jam nut, then unscrew housing
from shift lever.
Inspection and Lubrication
Each 50,000 miles, disassemble,
inspect and clean, then lubricate
moving parts with barium-base
grease. No other type lubricant
should be used.
Assemble and Install Valve
1.
If housing was removed, install jam nut on shift lever. Thread housing
on shift lever and tighten jam nut. Connect air lines. Air shift valve knob
should be positioned at 9:00 o'clock. Lubricate moving parts with barium-
base grease during assembly.
2.
Place shifter plate in mounting
3.
Pre-assemble guide and "O"
position on valve housing. ring, then place this assembly in
mounting position in shifter plate.
4.
Hold shifter plate in position
with one hand, then install spring
and shifter knob. Install cover and
fasten with screw.
73