D SERIES
OM-01490
MAINTENANCE & REPAIR
PAGE E - 14
out of position in shrinking. If movement has oc
curred, use a suitably sized sleeve and a press to
reposition the bearings.
If heating the bearings is not practical, use a suit
ably sized sleeve and an arbor (or hydraulic) press
to install the bearings on the shaft.
When installing the bearings onto the
shaft,
never
press or hit against the outer
race, balls, or ball cage. Press
only
on the
inner race.
If removed, install the snap ring (28) in the groove
on the pinion drive shaft (26). Install the bearing
(25A) on the pinion drive shaft against the snap
ring. Install the sleeve (27). Install the bearing (25)
onto the pinion drive shaft until squarely seated
against the sleeve. Secure the bearing with the
snap ring (24). Wrap the shaft and bearings in a
clean cloth until reassembly in the bearing hous
ing.
Install the bearing (4A) in the gear housing until it is
flush with the outer machined face of the housing.
Install a new spacer sleeve (2) through the open
bearing bore, then press the bearing (4) into the
bore until it is flush with the inner machined face on
the housing.
When installing the bearings into the bear
ing bore, push against the outer race. Nev
er hit the balls or ball cage.
Install the gear key (12) in the keyway in the drive
shaft (35). Press the drive gear (11) onto the drive
shaft and secure it with the snap ring (13).
Be sure
the drive gear seats against the snap ring.
Install the washer (5) onto the drive shaft and slide
the assembled drive shaft and gear through the
bearings in the gear housing. Install the same
thickness of shims (34) as previously removed. In
stall the washer (38) and drive shaft key (36). Press
the eccentric cam (33) onto the shaft and secure
with the snap ring (37).
Press the pinion bearing (32) into the gear housing
until the closed end is flush with the outer face of
the bore.
Press the internal gear (15) onto the pinion shaft
until it seats squarely against the pinion shoulder.
Position the spacer washer (30) in the gear hous
ing and slide the pinion shaft through the washer
and into the pinion bearing.
Press the pinion bushing (18) into the bearing
housing until fully seated.
Slide the assembled pinion drive shaft and bear
ings (25, 25A and 26) into the bearing housing (16)
until the bearing (25A) is fully seated against the
bore shoulder.
Press the oil seal (23) into the adaptor (22) with the
lip positioned as shown in Figure 4. The outer face
of the oil seal should be just flush with the face of
the adaptor.
Install the washer (19) in the bearing housing.
Press the oil seal assembly (21) into the bearing
housing until fully seated.
Be careful
not to roll or
damage the oil seal lip on the pinion keyway.
Install the housing gasket (6) and secure the cover
plate (7) to the bearing housing with two of the
capscrews and lockwashers (8 and 9).
If the locating pins (17) were removed, press new
pins into the gear housing (1). Install the gasket
(14) and position the bearing housing (16) over the
internal gear (15) and against the cover plate so
that the locating pins align with the holes in the cov
er plate. Be sure the teeth on the drive pinion (26)
mesh with those on the internal gear (15). Tap
against the bearing housing with a soft‐faced mal
let or wood block until the pinion bushing (18) fully
engages the pinion shaft (31).
Secure the cover plate and bearing housing to the
gear housing with the remaining attaching hard
ware (8, 9 and 10).
NOTE
The two longer capscrews (10) must be installed in
the two lower holes in the gear housing.
Install the drive key (20) in the drive pinion.
(Figure 1)
Install the coupling half (13) on the drive pinion (26,
Figure 4).
