25
MAINTENANCE SECTION
Disassembly of the Angle Head
1.
Slide the Coupling Nut (104) toward the output end
of the Angle Head (100) and using a thin blade
screwdriver, work the Coupling Nut Retaining Ring
(105) out of the groove in the Angle Head. Slide the
Coupling Nut off the Angle Head.
2.
Using a piece of 9/16” hexagon bar stock with a 1/4”
hole drilled 3/4” deep in the center to clear the hex of
the Bevel Pinion (107) and a 9/16” wrench, unscrew
and remove the Angle Housing Plug (106).
3.
To pull the assembled Bevel Pinion out of the Angle
Head, proceed as follows:
a)
Gather together a 1/2” square drive socket for a
nut larger than one inch, an 8–32 UNC socket
head cap screw that is one half inch longer than
the socket, a nut for the Screw and a flat washer
that is larger than the socket with a hole that
smaller than the nut and thick enough to with-
stand some pressure. A wrench for the nut and a
hex wrench for the screw are also required.
b)
Thread the nut onto the cap screw until it stops
against the screw head.
c)
To restrict the rotation of the angle head spindle,
clamp a box wrench that will fit the square drive
or one leg of a hex wrench that will fit into the
end of the spindle opening into a vise. Insert the
output end of the Spindle (113) into the wrench.
d)
Place the square drive end of the socket against
the notched end of the Angle Head.
e)
With the cap screw and nut inserted through the
flat washer, thread the cap screw through the
square drive opening into the end of the Bevel
Pinion until it bottoms out.
f)
Thread the nut along the cap screw until it con-
tacts and holds the flat washer and socket against
the Angle Head.
g)
Use a hex wrench to hold the cap screw in posi-
tion while turning the nut with a wrench to jack
the assembled Bevel Pinion out of the Angle
Head. Unscrew the cap screw from the Bevel
Pinion.
4.
Slide the Pinion Rear Bearing (109) and Pinion Front
Bearing (108) off the Bevel Pinion.
5.
Grasp the Angle Housing lightly in copper–covered
or leather–covered vise jaws with the Spindle
upward.
The thread in the following step is a left–hand
thread. Rotate the wrench clockwise to remove
the Cap.
6.
Use the Spindle Bearing Cap Wrench (Part No.
141A12–26) to unscrew and remove the Lower
Spindle Bearing Cap (116).
7.
Pull the assembled Spindle out of the Angle Head.
8.
Install a bearing separator between the shoulder of
the Spindle and the end of the Spindle Lower Bearing
(112) that is farthest from the Bevel Gear (110).
Support the separator on the table of an arbor press
with the output end of the Spindle downward and
using a pressing plug that clears the inside of the
Bevel Gear Retainer (111), press the Spindle out of
the Retainer, Bevel Gear and Lower Spindle Bearing.
In the following steps, the Detent Retainer for the
TRL2S6 Angle Head will most likely be damaged
or destroyed during the removal process. Make
certain you have a replacement available before
attempting to remove it.
9. For TRL2S6 Angle Heads, grasp the end of the
Detent Retainer (115) with needle nose pliers and pull
it from the end of the Spindle. Push the Spindle
Detent (114) inward to have it fall out the end of the
Spindle.
For TRL2Q4 Angle Heads, use a screwdriver to pry
the Detent Retainer (115) off the Spindle and remove
the Spindle Detent (114) from the hole in the Spindle.
For TRL2H4 Angle Heads, use a pointed probe to
spiral the Spindle Detent (114) out of the internal
groove in the Spindle.
10. If the Spindle Upper Bearing (102) must be replaced,
press the Bearing out the end of the Angle Housing
opposite the spindle end.
Disassembly of the Adjustable Shutoff Clutch
1.
Using a thin blade screwdriver, pry the Clutch
Adjusting Nut Stop (64) off the end of the Clutch
Shaft (52).
2.
Insert the tip of a #1 Phillips Head Screwdriver into
the adjustment opening between the Clutch Adjusting
Nut (63) and the Clutch Adjusting Nut Washer (62).
Rotate the screwdriver clockwise to thread the
Adjustment Nut off the Clutch Shaft.
