TM 5-2420-230-24-1
Spicer Speciality Axle Division - Technical Publications
SECTION 13
DISMANTLING THE STEERING HEAD / AXLE STUB
13.1
Remove lubricator (81) with protective cap (82) from top cap (78) followed by top cap setscrews (80)
and washers (79).
13.2
Lift off top cap (78) complete with thrust button (77), also shims (76) then remove any sealant present
on top cap and shim mating faces (78 &76) using Loctite 'Chisel Gasket Remover' or by carefully
scraping sealant from parts.
13.3
Screw one of swivel jaw top cap setscrews (80) into tapped hole provided in centre of swivel jaw top cap
thrust disc (77), and tighten screw to extract thrust disc.
13.4
Swing top swivel (74) horrizontally through approx. 35, enabling it to be dropped down and then pulled
outwards from swivel jaw (71). Inspect swivel felt (84) and retaining ring (85) for wear / ingress of dirt
and pull off and replace if necessary.
Inspect axle casing / swivel studs (93 ) for damage and / or misalignment and replace if required.
13.5
Lift out bottom swivel (142) complete with dirt excluder (143), oil seals (144) and bearing cone (145A).
13.6
Using a hide faced hammer, tap off bearing cone (145A) and remove and discard swivel oil
seals (144).
Inspect dirt excluder (143) for damage or excessive corrosion and tap off for replacement if required.
13.7
Inspect bearing housing (146) and swivel bearing cup (145) for signs of wear and / or damage.
Using suitable extractor tooling, (tool no. E405) remove bearing cup from housing.
Note :-
If either bearing cup or cone is damaged, replace with a new matched cup and cone
assembly.
13.8
Remove lubricator (147) with protective cap (148) from swivel jaw bearing sleeve (146) then, using a
hide faced hammer, knock swivel jaw bearing sleeve from swivel jaw (71).
13.9
Inspect swivel top bush (75) for wear and / or corrosion, then with service tool no. E546 drive out bush if
required.
13.10
Inspect chamber bracket studs (83) and bottom lever studs (140 & 129) for damage and / or
misalignment and replace if required.
13.11
Remove swivel jaw / swivel stub nuts (116), then separate swivel stub (98) from swivel (71).
13.12
Inspect swivel stub / swivel jaw studs (119) for damage and / or misalignment and replace if required.
13.13
With a suitable pry bar, remove and discard dirt excluder and swivel stub oil seal (63 & 78).
13.14
Inspect swivel stub bush (99) for signs of wear or damage and knock out with a soft metal drift if
required.
13.15
Inspect brake bracket / swivel stub studs (97 & 117) for damage and / or misalignment and replace if
required.
13.16
Check condition of pressure releif valve in axle stub.
Spicer Speciality Axle Division
Manual No. 1785 Issue B
A
Page No.B14
J-44
