L.H. Transfer Case (Current Model) - Exploded View Figure 11
TRANSFER CASE INSPECTION & ADJUSTMENT
A.- Remove the transfer case from the paver and move it to a shop area where the unit can be opened,
cleaned and inspected internally without risk of contamination from wind borne dust, etc.
B.- Before opening a transfer case clean the outside surfaces of all loose dirt.
C.- Remove the case cover. Drain the oil and flush the interior with solvent to remove all oil and residue.
D.- Inspect the gears for their wear patterns. (See Figure 13) Pay particular attention to the wear patterns of
gears (29) and (37), Figures 11 and 12, as the drive loading is greatest on these gears. If any gears in the case
show signs of improper wear or if there is a looseness of any shaft or bearing, the case should be dismantled
and checked for the following requirements:
(1) All bearings must be tight in the case or retainer. If they are loose due to an out-of-round bore, a new
bearing will not correct the looseness. Pay particular attention to output shaft area. (Bearings 34 and 39).
(2) All bearings must be in good condition. Worn bearings cannot maintain the high degree of shaft
(3) All shafts must be rigidly fixed in a parallel attitude.
(4) Input shaft should not have more than .003" end float. (See Step E)
(5) Tapered roller bearings on output shaft must be accurately pre-loaded. (See Step H)
(6) Oil seals must be in good condition so that a rapid loss of oil does not occur.
E.- If necessary, make a micrometer check at the two critical points on each bearing retainer (3) and (15) for
the input shaft (12). See Figure 16 for correct dimensions. In the event they are worn out- of-tolerance replace
Adjust the clearance of the tapered bearings (6) and (7) on input shaft (12). This is done by adjusting
shim kit (4) so that the shaft has .001" to .003" end float. (Important! The installation of new bearings will
help assure trouble-free performance.)
F. - Carefully check the two stub shafts for vertical looseness. If there is looseness in shafts(22) or (28)-
replace the ball bearings (20) and (26). (There is no ball bearing adjustment.) However, before installing new
bearings at these points check. The bores of the housing for size, roundness, and axial alignment. (See
Figures 17 and 18 for correct