Spicer Speciality Axle Division - Technical Publications
DISMANTLING DIFFERENTIAL LOCK
Remove clevis pin fork split pin (60) and pull out pin (57).
Tap out roll pins (47) which secure differential lock fork (48).
Withdraw differential lock lever pin (1).
Remove and discard 'O' ring (2).
Differential lock fork (48) and clutch dog (50) can now be removed from inside axle casing.
Check for signs of oil seepage around bush (3). Knock out for replacement if required.
Remove stop screw (6) and lock nut (7).
REMOVAL OF AIR CHAMBER ASSEMBLY
Loosen locknut (59) then unscrew fork (58) and locknut from air chamber push rod.
Disconnect air chamber (54) from its air supply and pull off connections for diff lock switch (53).
Remove air chamber nut (56) and washer (55) and pull chamber from its mounting plate.
After carefully cleaning the various parts in paraffin or other suitable cleaning agents, they should be
inspected for wear / damage. Any parts found to be defective should be renewed. Oil seals, and thrust
washers should be replaced as a matter of course at each overhaul.
Manual No. 1785 Issue A
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