19WPMAN0141 (8/31/01)
10
1
5
2
8
4
6
9B
9A
7
6
4
3
2
SEAL LIP
SEAL LIP
CD3534B
1. Spindle assembly
2. Seal
3. Sleeve
4. Bearing cone
5. Housing & cups
6. Cup
7. Shaft
8. 1/8 PTF 45_ Grease fitting
9A. Grease fitting for right and center spindles
9B. 30_ Grease fitting for left spindle
10. 1
8F x 1
8M PTF 45_ Grease
ittin
1. Spindle assembly
2. Seal
3. Sleeve
4. Bearing cone
5. Housing & cups
6. Cup
7. Spindle shaft
8. 45_ Grease fitting
9A. Grease fitting for center spindle
9B. 30_ Grease fitting for right and left spindles
10. 45_ Grease
ittin
10
9B
5
9A
7
6
4
8
2
1
6
4
3
2
SEAL LIP
SEAL LIP
CD3523D
GM1060S GM1072S
Figure 12. Spindle Repair
IMPORTANT
J Bearing adjustment is set by pressing
sleeve against bearing cone until proper
adjustment is attained.
Install sleeve (3) on shaft and press sleeve and
bearing cone onto shaft until all bearing free play is
removed and there is a slight drag (similar to adjusting
the front wheel bearings on an automobile). Check by
spinning spindle. It should turn freely.
Be careful not to overtighten bearings. Proper bearing
adjustment is essential to good bearing life.
If you overtighten bearings, hold spindle housing and
rap spindle shaft with a lead hammer to loosen
bearings. Readjust bearings until proper setting is
obtained.
IMPORTANT
J Improper positioning of seals can
cause seal failure.
Proper seal installation is important. An improperly
installed seal will leak and could cause bearing failure.
Pull the rubber portion of seal back and locate spring.
Apply a thin coat of lubricant to bottom seal (2) and
install with spring up toward center of housing.
Place bottom seal squarely on housing. Select a
piece of pipe or tubing with an OD that will set on
outside edge of seal. A tube that is too small will bow
seal cage.
Carefully press seal into housing, preventing distor-
tion to metal seal cage. Seal should seat firmly and
squarely against machined shoulder in housing.
Make sure seal lip did not roll under . Distortion to seal
cage or damage to seal lip will cause seal to leak.
Damaged seals must be replaced.
Apply a thin coat of lubricant to top seal (2) and install
with spring up away from center of housing. Top seal
should be flush with top of housing.
Lubricate spindle with a lithium grease o f #2 consis-
tency with a MOLY (molybdenum disulfide) additive.
Vent top seal with blunt edged tool, such as a letter
opener, while filling with grease. Rotate housing on
spindle shaft, checking for free movement.
