Spicer Tandem Drive Axles Pro-40 Single Reduction and Single Reduction with Differential Lock - Manual (Page 16)

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Forward Assembly
Disassemble Lockout
External Type Lockout
8. With axle installed in vehicle, place differential lock
selector valve in the disengaged (or unlocked) posi-
tion.
9. Disconnect differential lockout air line.
10. Remove cap screws.
11. Remove shift cylinder body or cast iron cover, o-ring
and piston.
Do not remove push rod. Removal of push rod will result in
shift fork and compression spring falling into power divider
unit. If this occurs, disassembly of the power divider
assembly will be necessary.
12. Remove shoulder washer in cylindrical design lock-
outs. Cast iron cover lockout designs do not use a
shoulder washer.
Note: Cylindrical design lockout and cast iron cover lockout
are interchangeable only as complete assemblies.
Integral Type Lockout
1. With axle installed in vehicle, place differential lock
selector valve in the disengaged (or unlocked) posi-
tion.
2. Disconnect differential lockout air line.
3. Remove piston cover and o-ring.
4. Remove piston and o-ring assembly with pliers.
Note: To remove shift fork and push rod parts, the power
divider must be removed. See power divider section.
Install Lockout
External Type Lockout
1. Assemble o-rings onto piston. Apply silicone grease
to o-ring.
2. Install piston and o-ring assembly into cylinder body
or cast iron cover.
3. Attach shift cylinder body or cast iron cover to power
divider while aligning piston with push rod. Make
sure shoulder washer or gasket is in place.
4. For stamped steel style lockouts, attach mounting
bracket to cylinder body and secure cap screws.
5. Tighten cap screws to 28–35 lb-ft. (38–47 N•m).
6. Connect differential lockout air line.
7. Cycle the lockout unit to insure there are no leaks
and system shifts freely.
Integral Type Lockout
1. Assemble o-rings onto piston and piston cover.
Apply silicone grease to o-rings.
2. Gently push piston and o-ring assembly into lockout
cylinder recess. Make sure piston is pushed all the
way in.
3. Install piston cover and o-ring assembly. Start by
hand tightening clockwise.
Do not to strip threads or use excessive force, damage to
part may occur.
4. Tighten piston cover to 25-35 lb-ft. (35-47 N•m).
5. Connect differential lockout air line.
6. Cycle the lockout unit to make sure there are no
leaks and the system shifts freely.
IMPORTANT
CAUTION
Fo
rward Assembly