4–8
MAINTENANCE SECTION
Disassembly of the Angle Attachment
1.
Using a wrench on the flats of the Coupling Nut
(423), unscrew the Coupling Nut and pull the as-
sembled angle head away from the tool.
In the following step, the Ball Retaining Screw has
a thread–locking compound applied to the
threads. It may be necessary to heat the Screw
somewhat to remove it. Do not heat the assembly
enough to damage the internal components.
2.
Using a hex wrench, unscrew and remove the Ball
Retaining Screw (403) from the Angle Housing
(400). Remove the Bearing Cap Retaining Ball (402)
from the screw hole.
3.
Using a spanner wrench, unscrew the Spindle Lower
Bearing Cap (422) and pull the assembled Spindle
(417) out of the Angle Housing.
4.
Grasp the square drive of the Spindle in leather–cov-
ered or copper–covered vise jaws and using a 7/8”
socket or wrench, unscrew and remove the Bevel
Gear Nut (416).
5.
Slide the Bevel Gear Washer (415), Bevel Gear (414)
and the Spindle Lower Bearing Cap assembled with
Spindle Lower Bearing (421) off the Spindle.
6.
If the Spindle Lower Bearing needs replacement,
press it from the Bearing Cap.
7.
If the Socket Retainer Pin Spring (419) is broken or
the Socket Retainer Pin (418) is worn and needs re-
placement, use a pin punch against the end of the Re-
tainer Pin to drive the Socket Retainer Expansion
Plug (420) out of the Spindle.
8.
Using external retaining ring pliers, remove the two
Coupling Nut Retaining Rings (424) from the Angle
Housing. Slide the Coupling Nut off and remove the
Pinion Housing Alignment Ball (404).
9.
Insert a screwdriver or rod into one of the slots in the
face of the Bevel Pinion Housing (405) and rotate the
assembled Housing counterclockwise to remove it
from the Angle Housing.
10. Using snap ring pliers, remove the Thrust Washer
Retaining Ring (413) from the shaft of the Bevel Pin-
ion (406). Remove the Pinion Rear Thrust Bearing
(410), the two Rear Bearing Thrust Washers (411)
and the Pinion Clamp Washer (412) from the shaft of
the Bevel Pinion.
11. Push on the small shaft of the Bevel Pinion to remove
it from the Bevel Pinion Housing.
12. Slide the Pinion Front Thrust Bearing (408) and Front
Bearing Thrust Washer (409) off the shaft of the Bev-
el Pinion.
If the bearings in the following steps must be re-
moved, make certain you have replacement bear-
ings on hand. Needle bearings are always dam-
aged during the removal process.
13. If the Bevel Pinion Bearings (407) must be removed,
pull them from the Bevel Pinion Housing.
14. If the Spindle Upper Bearing (401) must be removed,
press it from the Angle Head.
Assembly of the Angle Attachment
1.
If the Spindle Upper Bearing (401) was removed,
position the output end of the Angle Housing (400)
on the table of an arbor press with the large hub
downward. Pressing on the closed end of a new
Bearing, press the Bearing into the Housing until the
closed, trailing end of the Bearing is flush with the
top of the Angle Housing.
2.
If the Bevel Pinion Bearings (407) were removed, use
a needle bearing inserting tool as shown in Drawing
TPD786 to press a new Bearing in each end of the
Bevel Pinion Housing (405). Press one Bearing flush
with the face of the recess on the one end, and the
other Bearing flush with the opposite end face.
Needle Bearing Inserting Tool
(Dwg. TPD786)
SHOULDER TO
REGULATE DEPTH
PILOT TO FIT I.D. OF BEARING.
LENGTH OF PILOT TO BE
APPROXIMATELY 1/8” LESS
THAN LENGTH OF BEARING
3.
Inject Ingersoll–Rand No. 67 Grease into the Bear-
ings until they are filled to about forty percent of their
capacity.
4.
Apply Ingersoll–Rand No. 67 Grease to both sides of
the Pinion Front Thrust Bearing (408) and slide it
onto the shaft of the Bevel Pinion (406) until it stops
against the large gear head.
5.
Install the Front Bearing Thrust Washer (409) on the
shaft against the Bearing.
Summary of Contents for 150 D Series
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