HONDA RM752A - Manual (Page 24)

5
1. Blade spindle
2. Sleeve
3. 1-3/4 x Flat washer
4. Seal
5. Bearing cone
6. Spindle housing with cups
7. Bearing cup
8. Grease fitting
9. Spindle shaft and crossbar
10. Blade pin retainer washer
11. QD Blade pin
12. 1/2 x Nylok
13. Key
14. Blade
Flgure 16. Blade Spindle Assembly
IMPORTANT NOTICE
Improper positioning of seals can cause seal
fallure.
Proper seal installation is important. An improperly
installed seal will leak and could cause bearing
failure.
Coat area of housing where seals seat, lightly with
Permatex.
Pull the rubber portion of seal back and locate
spring.
Apply a thin coat of lubricant to bottom seal and
install with spring up toward center of housing.
Place seal squarely on housing. Select a piece of
pipe or tubing with an outside diameter that will set
on outside edge of seal. A tube that is too small will
bow seal cage.
Carefully press seal into housing, preventing
distortion 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.
Place bottom washer (3) on shaft and crossbar (9).
Place housing assembly with bottom seal
bottom cone
(5) and cup (7) installed over shaft and
crossbar (9). Carefully guide seal over shaft and
press shaft into housing.
Fill housing cavity with a medium grade grease.
Place top bearing cone ( 5 ) and sleeve (2) on shaft.
Press sleeve and bearing 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.
IMPORTANT NOTICE
Bearing adjustment Is set by pressing sleeve
agalnst bearing until proper adjustment is
attained. Adjustment is maintained by tack
sleeve (2) and washers (3) to spindle
shaft.
Be careful not to over-tighten bearings. Proper
bearing adjustment is essential to good bearing life.
Should you over-tighten bearings, hold spindle
housing and rap spindle shaft with a lead hammer
to loosen bearings. Adjust to obtain proper setting.
Place a damp rag over bearings to protect them.
Tack weld sleeve to shaft in two spots apart.
Also tack weld top and bottom washers in two spots
apart.
IMPORTANT NOTICE
When welding bottom washer, connect welder
ground to crossbar. When top
washer and sleeve, connect welder to top of
shaft. Failure to connect welder ground
properly can to become welded
to shaft.
Install top seal with spring up away from center of
housing. Top seal should be flush with,
to 1/16
above, housing.
F-7756 (1 0-89) 22