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18. Lightly grasp the threaded hub of the Rotor in leather-covered or
copper-covered vise jaws with the splined hub upward.
19. Wipe each Vane (38) with a film of Ingersoll Rand No. 10 Oil and
place a Vane in each slot in the Rotor.
20. For 6WS or 6WT, looking down the axis of the Rotor and
Cylinder (39), position the Cylinder over the Rotor with the
cylinder dowel hole at twelve o’clock, the notch in cylinder face
at ten o’clock and the two slots in the side of the Cylinder at two
o’clock. Place the Cylinder down over the Rotor and Vanes and
against the Rear End Plate.
For 6WRS or 6WRT, place the Cylinder (39) down over the Rotor
and Vanes and against the Rear End Plate.
NOTICE
Align the Cylinder Dowel hole in the Rear End Plate, Cylinder and
Front End Plate (40) before pressing the Front Rotor Bearing (42)
onto the shaft.
21. Push the Front Rotor Bearing into the recess in the Front End
Plate.
22. Remove the assembled Rotor from the vise and using a sleeve
that contacts the inner ring of the Front Rotor Bearing, press the
Bearing, flat side of the Front End Plate first, onto the rotor shaft.
After pressing the Bearing onto the shaft, lightly rap the end of
the splined hub with a plastic hammer to relax the load on the
Bearing. The Rotor must rotate in the Bearing without drag.
23. Position the Rear End Plate Gasket (33) in the bottom of the
motor housing bore so that the dowel hole and air inlet port in
the Gasket align with the dowel hole and air inlet in the housing
bore face.
24. Using an assembly dowel 3/32” in diameter by 10” long (2.3 mm
x 254 mm), align the dowel holes in the Front End Plate, Cylinder
and Rear End Plate. Insert the assembly rod through the aligned
holes so that about 3” (76 mm) of the rod extends beyond the
Rear End Plate. Insert the extension into the dowel hole at the
bottom of the housing bore, and slide the motor into the Motor
Housing until it seats.
25. Withdraw the assembly dowel and insert the Cylinder Dowel (41)
until the Cylinder Dowel is slightly below the surface of the Front
End Plate.
Assembly of the Gearing
1. If the Grease Shield Retainer (60) was removed, install it in the
second groove below the front face of the Gear Case (56).
2. Support the face of the Spindle (43), pin end downward, on the
table of an arbor press.
3. Install the Seal Support (44), large end first, and Grease Shield (59)
over the hub of the Spindle.
4. Using a sleeve that contacts the inner ring of the Bearing, press
the Spindle Bearing (61) onto the hub of the Spindle until the
Bearing seats against the Seal Support.
5. Insert the assembled Spindle, pin end first, into the front end of
the Gear Case until the Grease Shield is flush against the Grease
Shield Retainer.
6. Using snap ring pliers, install the Spindle Bearing Retainer (62) in
the groove ahead of the Spindle Bearing.
NOTICE
Always press on the stamped end of the Spindle Planet Gear
Bearings (47) and center the Bearing in the Gear.
7. If the Spindle Planet Gear Bearings are being replaced, use a
bearing inserting tool, shown in Dwg. TPD488, and press the
Bearings into the Spindle Planet Gears (46).
8. Grease the Bearings and Gears and install them on the pins of the
Spindle.
9. For M, N, P, Q, or R ratio, install the Gear Head Spacer (55) in the
Gear Case against the Spindle Planet Gears.
10. For M, N, P, Q or R ratio, grease the splined hub of the Gear
Head (50) and insert it into the Gear Case. The splined hub must
pass through the Gear Head Spacer and mesh with the teeth of
the Spindle Planet Gears.
NOTICE
Always press on the stamped end of the Bearing and center the
Gear Head Planet Gear Bearings (52) in the Gear.
11. For N, P, Q or R ratio, if the Gear Head Planet Gear Bearings (52)
are being replaced, use a bearing inserting tool similar to the
one used with the Spindle Planet Gear Bearings and press the
Bearings into the Gear Head Planet Gears (51).
For M ratio, push the Gear Head Planet Gear Bearing (54) into the
Gear Head Planet Gear (53).
12. For M, N, P, Q or R ratio, grease the Bearings and Gears and
install them on the pins of the Gear Head.
13. For M, N or P ratio, grease the Rotor Pinion (49) and install it in
the center of the Gear Head Planet Gears. Make certain the teeth
of the Pinion and Planet Gears mesh.
14. Using snap ring pliers, install the Gear Retainer (48) in the shallow
internal groove in the Gear Case behind the Spindle Planet Gears
or Gear Head Planet Gears.
15. For 6WT or 6WRT, install the Exhaust Deflector (64) as follows:
a. Install the two Exhaust Deflector Seals (65) in the annular
grooves on each side of the Muffler Element (63) recess on the
Gear Case.
NOTICE
Make certain the hole through the Muffler Element aligns with
the Grease Fitting (57) in the Gear Case.
b. Wrap the Muffler Element around the Gear Case in the recess.
c. Slip the Exhaust Deflector, largest inside diameter first, onto
the front end of the Gear Case and over the Muffler Element
and Exhaust Deflector Seals.
d. Spread the ends of the Deflector Retaining Ring (66) and
install it in the external groove in the Gear Case adjacent to
the front of the Exhaust Deflector.
16. Thread the assembled Gear Case onto the assembled Motor
Housing until it is hand tight. Make certain the gear teeth on the
Spindle mesh with the gear teeth of the Rotor Pinion, Gear Head
Planet Gears or Spindle Planet Gears.
NOTICE
Run the motor at free speed on low air pressure while final
tightening the Gear Case. Listen while tightening to make
certain the gears mesh properly.
17. Tighten the Gear Case between 30 to 35 ft-lb (41 to 47 Nm)
torque.
Assembly of the Angle Attachment
1. Lubricate the Bevel Pinion (105) as instructed under
LUBRICATION and insert it, gear end first, into the long bore of
the Angle Housing (101).
2. Lubricate the Bevel Pinion Bearing (106) as instructed under
LUBRICATION and insert it, unstamped end first, into the bore of
the Angle Housing and onto the bevel pinion shaft.
3. For 7L3D6 Angle Head, use No. 7L3A-950 Bearing Inserting
Tool and press the Bevel Pinion Bearing so the stamped face is a
maximum of 1.35” (34.4 mm), but not less than 1.34” (34.1 mm)
below the end face of the Angle Housing.
For 6L2D6 Angle Head, use No. 7L2A-950 Bearing Inserting
Tool and press the Bevel Pinion Bearing so the stamped face is a
maximum of 1.65” (42.0 mm), but not less than 1.64” (41.75 mm)
below the end face of the Angle Housing.
NOTICE
Check to make sure the Bearing Spacer Retainer (111) is
completely seated.
