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Disassembly of the TRL5F28 and TRL5F40
Angle Heads
1. Carefully grasp the assembled Angle Head in leather-
covered or copper-covered vise jaws with the input end of
the Angle Head in a downward position.
NOTICE
The thread in the following step is a left-hand thread.
Rotate the Coupling Nut (62) in the indicated direction to
loosen it.
2. Remove assembled Lower Angle Head (66) from
assembled Upper Angle Head (56). Pinion (65) and
Bearings (61) can be removed from assembled Lower
Angle Head (66), and Adapter (64) can be removed from
assembled Angle Head (56).
3. Grasp the assembled Lower Angle Head (66) lightly in
copper-covered or leather-covered vise jaws with the
output upward.
NOTICE
The thread in the following step is a left-hand thread.
Rotate the wrench clockwise to remove the Bearing Cap
(68).
4. Use a fixed or adjustable face spanner wrench to
unscrew and remove the Spindle Bearing Cap (68).
5. Pull the assembled Spindle (67) out of the Angle Head.
6. Slide the two Spindle Bearings (61) off the Spindle.
7. To remove the Spindle Upper Bearing Shaft (59), stand
the gear end of the Spindle on a block with clearance for
the Shaft. Insert a 1/8" round rod into the opening in the
output end of the Spindle and using an arbor press, press
the Shaft out of the Spindle.
8. If the Spindle Upper Bearing (58) must be replaced, press
the Bearing and Spindle Upper Bearing Cap (57) out the
end of the Angle Housing opposite the spindle end.
9. Reposition assembled Upper Angle Head (56) with input
upward.
10. Slide the Upper Housing Coupling Nut (51) toward the
output end of the assembled Upper Angle Head (56) and
using a thin blade screwdriver, work the Coupling Nut
Retaining Ring (50) out of the groove in the Angle Head.
Slide the Coupling Nut off the Angle Head.
11. 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 (55) and a 9/16" wrench, unscrew and
remove the Angle Housing Plug (52).
12. To pull the assembled Bevel Pinion out of the Angle
Head, proceed as follows:
a) Gather together a 1/2" square drive socket that would
be used for a nut that is larger than 1" and an 8-32 UNC
socket head cap screw that is 1/2" longer than the socket.
In addition, a nut for the Screw and a flat washer that is
larger than the socket with a hole that is smaller than the
nut, yet is thick enough to withstand some pressure, are
also necessary. 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 small angle head Spindle
(60), thread a 1/4"-28 thread bolt into the Spindle or insert
a rod into the collet and clamp the bolt or rod into a vise
with the motor end upward.
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.
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f) Thread the nut along the cap screw until it contacts and
holds the flat washer against the Angle Head.
g) Use a hex wrench to hold the cap screw in position
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.
13. Slide the Pinion Rear Bearing (53) and Pinion Front
Bearing (54) off the Bevel Pinion.
14. Reposition assembled Upper Angle Head (56) in vise
with the input end downward. Pull Lower Housing
Coupling Nut (62) over so that flats of Coupler (63) are
exposed. Grip on flats and unscrew.
15. Remove Spindle Bearings (61) and Bevel Gear (60) from
the assembled Upper Angle Head (56).
16. To remove the Spindle Upper Bearing Shaft (59), stand
the gear end of the Spindle on a block with clearance for
the Shaft. Insert a 1/8" round rod into the opening in the
output end of the spindle and using an arbor press, press
the Shaft out of the spindle.
17. If the Spindle Upper Bearing (58) must be replaced, press
the Bearing and Spindle Upper Bearing Cap (57) out the
end of the Angle Housing opposite the Spindle end.
Disassembly of the Gearing
1. Using snap ring pliers, remove the Gear Retainer (34)
from inside the Gear Case (42) and remove the Gear
Head Spacer (35).
2. For Series QA35, lightly rap the motor end of the Gear
Case on a wooden work bench top to remove the Planet
Gear Head Drive Plate (36).
For Series QA21, QA27 and QA35, lightly rap the motor
end of the Gear Case on a wooden work bench top to
remove the Planet Gear Head Drive Plate (36), Planet
Gear Head Assembly (37) and the Planet Gear Head
Spacer (40).
For Series QA05, QA08, QA12 and QA17, lightly rap
the motor end of the gear case on a wooden work bench
top to remove the three Planet Gears (38), the Planet
Gear Head Assembly (37) and the Planet Gear Head
Spacer (40).
For Series QA12, lightly rap the motor end of the Gear
Case on a wooden work bench top to remove the three
Planet Gears (38), the Gear Head Pinion (39), the Planet
Gear Head Assembly (37) and the Planet Gear Head
Spacer (40).
3. Using snap ring pliers, remove the Spindle Bearing
Retaining Ring (44).
4. Stand the Gear Case on the table of an arbor press with
the output spindle upward. Using a rod that neatly fits
inside the internal hex of the Spindle (41), press the
spindle Assembly out of the Spindle Bearing (43).
CAUTION
Do not remove the Bearing in the following step unless
you have a new replacement available for installation.
The Bearing will be damaged as a result of the removal
process.
5. Invert the Gear Case on the table of an arbor press so
that the end face having the four notches makes contact
with the table. Using a rod against the inner race of the
Spindle Bearing, press the Bearing from the Gear Case.
6. If the Spindle Bearing Seat (45) must be replaced, use a
small, thin blade screwdriver to spiral it out of the groove
in the Gear Case.
EN-2
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