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WARNING
Always wear eye protection when operating or performing maintenance on this tool.
Always turn off the air supply and disconnect the air supply hose before installing, removing or adjusting any accessory on this tool or
before performing any maintenance on this tool.
Note: When reading the instructions, refer to exploded diagrams in parts Information Manuals when applicable (see under Related
Documentation for form numbers).
Lubrication
Each time the Series 6W Angle Wrenches are disassembled for
maintenance, repair or replacement of parts, lubricate the tool as
follows:
1. Work approximately 1.5 cc of Ingersoll Rand No. 67 Grease into
the Rear Rotor Bearing (35), Front Rotor Bearing (42), and the
Spindle Bearing (61).
2. Work 6 cc to 8 cc of Ingersoll Rand No. 67 Grease into the L ratio
gear train and 10 cc to 12 cc of the grease into the gear train of all
other ratios. Grease the Planet Gear Bearings (47, 52, and 54), the
gear teeth inside the Gear Case (56) and the planet gear shafts on
the Spindle (43) and the Gear Head (50).
3. Work 0.5 cc to 1.0 cc of Ingersoll Rand No. 67 Grease into the
Lower Spindle Bearing (113).
4. Work 0.5 cc to 1.0 cc of Ingersoll Rand No. 67 Grease into the
Upper Spindle Bearing (104), Bevel Pinion Bearing (106), and
Bevel Pinion Thrust Bearing (112). Apply 2 cc to 3 cc of the Grease
to the Matched Bevel Gear Set used in 6L2D6 Angle Attachments.
Disassembly
General Instructions
1. Do not disassemble the tool any further than necessary to replace
or repair damaged parts.
2. Whenever grasping a tool or part in a vise, always use leather-
covered or copper-covered vise jaws to protect the surface of
the part and help prevent distortion. This is particularly true of
threaded members and housings.
3. Do not remove any part which is a press fit in or on a
subassembly unless the removal of that part is necessary for
repairs or replacement.
4. Do not disassemble the tool unless you have a complete set of
new gaskets and O-rings for replacement.
Disassembly of the Angle Attachment
1. Carefully clamp the flats of the Coupling Nut (122) in leather-
covered or copper-covered vise jaws, with the Angle Housing
Assembly (101) facing downward.
NOTICE
The Gear Case (56) has left-hand threads.
2. Using a wrench on the flats of the Gear Case, loosen the Gear
Case from the Coupling Nut. Remove the tool from the vise.
Unscrew and remove the Coupling Nut from the Gear Case.
3. Carefully grasp the Angle Housing Assembly in leather-covered or
copper-covered vise jaws with the Spindle (118) facing upward.
NOTICE
The Spindle Bearing Cap (120) has left-hand threads.
4. Using No. 8SA32-26 or No. 141A12-26 Lower Bearing Cap Wrench,
unscrew and remove the Spindle Bearing Cap.
For 6L2D6, remove the Spindle Seal (120A). Withdraw the Socket
Adapter Spindle Assembly (118) from the Angle Housing.
5. Inspect the Lower Spindle Bearing (113) for looseness or
roughness. If either of these conditions exists, replace the Bearing
as follows:
For 7L3D6 Angle Head
a. Remove the Bevel Gear Retainer (114).
b. Press the Bevel Gear (105) from the Spindle.
c. Press the Lower Spindle Bearing from the Spindle.
For 6L2D6 Angle Head
a. Grasp the square drive end of the Spindle in leather-covered
or copper-covered vise jaws.
b. Unscrew the Bevel Gear Retainer (114) and lift the Bevel Gear
(105) off the Spindle.
c. Press the Lower Spindle Bearing from the Spindle.
NOTICE
Do not remove the Upper Spindle Bearing (104) unless you have
a new Bearing ready to install. This type of Bearing is always
damaged during the removal process.
NOTICE
The 7L3D6 Angle Head will require a new Angle Housing Cap
(103) when the Upper Spindle Bearing is installed.
6. If the Upper Spindle Bearing appears rough or loose, press it from
the Angle head.
7. Remove the Bearing Seat Retainer (108) and slide off the Rear
Thrust Bearing Seat (107), Bevel Pinion Thrust Bearing (112) and
Front Thrust Bearing Seat (109) from the pinion shaft.
8. For 7L3D6 Angle Head, use a thin blade screwdriver to pry out
and under the tab of the Bearing Spacer Retainer (111). Rotate
the screwdriver around the pinion shaft to spiral the Retainer out
of its groove. Using a hooked tool, reach into the Bevel Pinion
Bearing Spacer (115) and hook the drilled cross-hole in the
Spacer. Pull the Spacer from the Angle Housing.
For 6L2D6 Angle Head, use snap ring pliers to remove the Bearing
Spacer Retainer (111). Remove the Pinion Bearing Spacer (110).
NOTICE
Do not remove the Bevel Pinion (105) and Bevel Pinion Bearing (106)
unless you have a new Bearing on hand. After the Angle Attachment
is disassembled, check all parts for damage or wear.
NOTICE
If the gear teeth on either the Bevel Pinion or Bevel Gear are
worn or chipped, replace both parts. These are a matched set
and must be replaced with another matched set.
9. Grasp the spline of the pinion shaft in leather-covered or copper-
covered vise jaws and while gently tapping the rear face of the
Angle Attachment with a soft hammer, pull the Bevel Pinion and
Bevel Pinion Bearing from the Angle Attachment.
Disassembly of the Gearing
1. Being careful not to distort the Motor Housing (1), grasp the flats
on the Housing in leather-covered or copper-covered vise jaws
with the Gear Case (56) facing upward.
2. Using a wrench on the flats of the Gear Case, loosen, but do not
remove the Gear Case.
NOTICE
Be certain to hold the tool over a workbench so that you will not lose
any parts as the Gear Case and the Motor Housing are separated.
