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GRINDER DISASSEMBLY
SPINDLE & SPINDLE HOUSING DISASSEMBLY
1. Loosen 3 capscrews and lockwashers (64 & 63) and
remove the guard front plate (62) and set aside.
2. Depress the push lock (45) to lock the spindle. Remove
the jam nut (61), outside flange (60), grinding wheel if one is
present, the drive flange (59) and the key (32).
3. Unscrew the capscrew (56) and slide the inner guard assy
(58) off of the spindle housing (49).
4. Remove 3 capscrews (51) and lift the spindle housing (49)
off of the motor front bearing housing (13). Pick out the
coupling (37) and set it aside.
5. Press the spindle (33), bearing (34) and bearing spacer
(36) out of the spindle housing by using an arbor press and
pressing on the spindle from the threaded end. This proce-
dure will also remove the v-ring seal (54) from the spindle.
Discard the v-ring seal.
6. Remove the retaining ring (35) from the spindle.
7. Remove the bearing (34) from the spindle by placing the
spindle in an arbor press and pressing on the coupling end.
8. Remove the bearing race (48) from the spindle by placing
the spindle in an arbor press and pressing on the threaded
end of the spindle.
6. Pry the seal (53) out of the spindle housing and discard it.
7. Remove the needle roller bearing (52) from the spindle
housing by using a bearing puller tool.
8. The push lock (45) may be removed from the spindle
housing by first removing the retaining ring (44). Pull the
push lock out of the spindle housing. Pick out the spring
(47). Pry the o-ring (46) off of the push lock and discard it.
MOTOR DISASSEMBLY
1. Complete steps 1 through 4 of the Spindle and Spindle
Housing Disassembly.
SERVICE
3. Remove 8 capscrews (8) and using a flat-blade screw-
driver or similar tool, gently pry the front (13) and rear (16)
bearing housings apart. Lift the front bearing housing straight
up. Do Not tilt the housing or pry on the flat surface inside of
the surrounding groove. For prying, only use the groove
provided at the split between the parts to prevent scratches
on the inner mating surfaces.
4. Remove the two gears (5 & 15), needle roller key (14), and
the idler shaft (4).
5. Remove the large face seal o-ring (3) while being careful
not to damage the o-ring groove or surrounding surface.
6. While protecting the motor surface of the shaft housing
from damage, hold the front bearing housing on its side and
tap lightly on the small diameter end (gear side) of the motor
shaft (39) to remove it and the bearing (38) from the front of
the housing.
7. To remove the bearing (38) from the shaft (39), press on
the spindle end of the motor shaft while supporting the outer
race of the bearing. Discard the old bearing.
8. Remove the retaining ring (40) at the bottom of the ball
bearing bore to service the shaft seal. Remove the seal gland
(41) using the appropriate o-ring service tools to pry it out of
its bore. Take care to avoid damaging the seal surfaces.
Note seal orientation. Remove the o-ring (43) from the
outside of the seal gland. Remove the quad ring (42) from the
inside of the seal gland.
9. Remove the four bushings (2) from the shaft housing and
gear chamber using p/n 11930 collet from p/n 05064 bearing
puller kit.
INSPECTION AND CLEANING
Inspect and clean all parts as follows:
Cleaning
Clean all parts with a degreasing solvent. Blow dry with
compressed air and wipe clean. Use only lint-free cloths.
Gear Chamber
The chamber bores and bottoms around the shaft bushings
should be polished and not rough or grooved. If the bushing
bores are yellow-bronze, replace them and investigate the
cause of wear.
The flat surfaces around the chamber and bolt holes should
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