Ingersoll-Rand 6WRSL3, Manual

Page: 29 / 35

29
MAINTENANCE SECTION
6. Using needle nose pliers to hold the short–stem end of
the Throttle Valve (10), install the Valve inserting the
long stem end through the hole in the Throttle Valve
Seat and Throttle Plunger.
7. After folding the Muffler Element (15) lengthwise,
and with the fold trailing, install the Element by
wrapping it horseshoe fashion around the inside of the
Rear Muffler (14) covering all exhaust holes.
8. Install the Exhaust Deflector Seal (13) into the groove
on the front end of the Rear Muffler.
9. Install the Silencer Seal Ring (12) over the hub of the
Motor Housing approximately halfway down the hub.
Tabs on the Rear Muffler match notches on the
Motor Housing. Do not force the Muffler into
place.
10. Install the Rear Muffler over the hub of the Motor
Housing, aligning the wide tab on the Rear Muffler
with the Throttle Plunger hole in the Motor Housing.
11. Insert the Air Strainer Screen (18), closed end first,
inside the the Inlet Bushing (17).
12. Insert the Throttle Valve Spring (11), large coil end
first, into the Inlet Bushing making sure it contacts
the Air Strainer Screen.
13. Install the Inlet Bushing Spacer (16) in the large hole
in the Rear Muffler.
14. Thread the Inlet Bushing into the Motor Housing,
making certain the Throttle Valve Spring encircles the
short–stem end of the Throttle Valve. Tighten the
Inlet Bushing to a minimum 26 ft–lb (35 Nm) torque.
The Inlet Bushing must securely clamp the Rear
Muffler.
15. Note that the Throttle Lever pinhole in the Rear
Muffler is larger at one end than the other. Install the
Throttle Lever (4), pressing the Throttle Lever Pin (5)
into the large end of the pinhole.
16. If the Rear Rotor Bearing (35) was removed, use a
sleeve that contacts the outer ring of the Rear Rotor
Bearing, press the Rear Rotor Bearing into the Rear
End Plate (36).
The Rotor (37) must spin freely while holding the
Rear End Plate.
17. Place the Rear End Plate, bearing end trailing, on the
threaded hub of the Rotor. Insert a 0.001” feeler
gauge or shim between the face of the Rotor and End
Plate. Place the Bearing Thrust Washer (34A) on the
threaded hub of the Rotor. Thread the Rear Rotor
Bearing Retaining Nut (34) onto the hub of the Rotor
and tighten it until the feeler gauge has a slight drag
during removal.
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.
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.