TM 5-2420-230-24-1
Spicer Speciality Axle Division - Technical Publications
SECTION 11
SEQUENCE OF OPERATIONS TO ASSEMBLY SPIRAL BEVEL WHEEL
(CROWNWHEEL) AND DIFFERENTIAL
11.1
Press diff. bearing cone (17A) onto its mating diff. cage half (14 ) followed by other bearing cone (46A)
onto its diff. cage half (50).
11.2
Fit spiral bevel wheel (crownwheel) (49) onto diff. cage (female half) (50) ensuring that diff. cage
dowels (45) are correctly located.
11.3
Fit diff. cage bolts (48) through spiral bevel wheel (crownwheel) and differential assembly then place
assembly on bench supported on blocks, crownwheel end down.
11.4
Fit one diff. bevel wheel thrust washer and diff. bevel wheel (51 & 52) into diff. cage half (50).
11.5
Assemble four diff. bevel pinion and bush assemblies (54 & 55) and four diff. bevel thrust washers (56)
onto diff. trunnion (53).
Note :-
If a new bush (55) is to be fitted into bore of pinion (54) it must be done using a suitable
press due to tight fit between pinion and bush. The bush (55) is pressed flush with
spherical face of pinion (54). If no press is available, then a new pinion and bush
assembly must be fitted.
11.6
Lay diff. trunnion assembly onto diff. bevel wheel (52) ensuring that teeth mesh correctly.
11.7
Place other diff. bevel wheel and thrust washers (52 & 51) onto diff. bevel pinions again ensuring that
teeth are correctly meshed.
11.8
Carefully fit diff. cage half (14) onto assembly, aligning matching marks on both diff. cage halves,
securing with diff. cage bolt nuts and washers (16 & 15), then tighten to
166 - 184 lbs. ft. (225 - 250Nm.).
Manual No. 1785 Issue A
Page No.C12
Spicer Speciality Axle Division
J-76
