ZF Repair Manual: ZF25A, ZF25, ZF45A, ZF45-1
<< Previous of 78 Next >>4.5.5 Measuring bearing clearance at
intermediate shaft
a) Unscrew plug (item 1, Fig. 5-5a) from the housing.
b) Screw in special tool (p/n 458105) (item 2, Fig. 5-5a)
into intermediate shaft hole.
c) Mount dial gauge support securely onto housing.
d) Turn intermediate shaft several times to permit bear-
ings to seat.
e) Adjust the dial indicator needle on top of the bolt
head and «O» to dial indicator (Fig. 5-5b).
f) Screw hexagon nut carefully against housing (inter-
mediate shaft moves up) until bearing clearance is
overcome (Fig. 5-5b).
NOTE
This step should be done very carefully to obtain the
actual bearing clearance.
g) Carry out steps d) and f) several times.
ZF25A - ZF25 - ZF45A
h) The clearance measured plus the pretension re-
quired in section 5.1 determine the required thick-
ness of shims.
ZF45-1
h) The clearance measured minus the clearance re-
quired in section 5.1 determine the required thick-
ness of shims.
i) Unscrew special tool and remove dial gauge with
support.
4.5.6 Measuring the bearing clearance on
the output shaft.
ZF25A - ZF25 - ZF45A
a) Insert output flange onto the output shaft and screw
in nut ring.
ZF45-1
b) Install bolt and spacer on input shaft.
c) Turn output shaft repeatedly to permit bearings to
seat.
d) Mount dial gauge support securely onto housing.
e) Place dial gauge onto top of the output shaft and ad-
just it to «0» reading.
f) Lift output shaft carefully, using two screwdrivers,
and record measurement (Fig. 5-6).
24
Repair Manual and Spare Parts List
Section 4
2
1
FIG. 5 - 5a
FIG. 5 - 5b
FIG. 5 - 6