Spicer Tandem Drive Axle Dual Range & Double Planetary 34,000-45,000 lbs - Manual (Page 65)

Axle Shift
I
Air Shifter
System Components
Valves
(Standard System)
NOTE:
For air shifter valve repair instruction, refer to pertinent manufacturer’s
I
literature. See instructions below for Interlock Pin Assembly repair.
Typical Air
Shifter Valve for
Standard System,
Axle Range Selection
and Inter-axle
Differential Lockout.
Ax/e Range Selector Name Plate
(Standard System)
Inter-Axle Differential
Lockout Name Plate
Air Shifter Valve
(Axle Range Interlock System)
Axle Range Interlock
.
Air Shifter Valve.
The Valve for the Inter-
ax/e Differential/ Lockout
is the same as the Standard
System.
Ax/e Range Selector Name P/ate
(System with Axle Range Interlock)
I
Axle Range Shifter Valve Interlock Pin Assembly
NOTE:
The interlock pin assembly
may be disassembled for cleaning
and inspection. However, parts are
only available as a complete assem-
bly (shifter valve and interlock
assembly).
Disassemble Pin.
Remove snap
ring, then remove piston stop,
piston and spring from piston
housing.
NOTE:
Before reassembly, lubri-
cate “O” rings with a high-viscosity
silicone oil or barium grease “O”
ring lubricant.
Assemble Pin.
Install “O” rings
on piston and piston stop. Insert
spring, piston and piston stop in
housing and secure with snap ring.
NOTE:
Interlock pin and piston
must reciprocate freely in the piston
housing when compressed against
the compression return spring.
NOTE: For ease of assembly,
insert a pin or drill bit (5/64” max.
diameter) into the piston stop to
guide the piston stop as it is
installed into the piston housing.
I
66