22
MAINTENANCE SECTION
25. 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.
26. Withdraw the assembly dowel and insert the Cylinder
Dowel (27) until the Cylinder Dowel is slightly below
the surface of the Front End Plate.
Assembly of the Gearing
1. If the Grease Shield Retainer (47) was removed,
install it in the second groove below the front face of
the Gear Case (44).
2. Support the face of the Spindle (29), pin end
downward, on the table of an arbor press.
3. For H, J or JJ ratio, install the Seal Support (30),
large end first, and Grease Shield (46) over the hub of
the Spindle.
For K, L, M, P or R ratio, install the Seal Support
(30), large end first and Grease Shield (46) over the
hub of the Spindle.
4. Using a sleeve that contacts the inner ring of the
Bearing, press the Spindle Bearing (48) 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 (49) in the groove ahead of the Spindle
Bearing.
7. For H ratio, push the Spindle Planet Gear
Bearings (35) into the Spindle Planet Gears (34).
8. For H ratio, grease the assembled Spindle Planet
Gears and Bearings and install them on the pins of the
Spindle.
For J, JJ, K, L, M, P or R ratio, grease the bearings
and gears of the Spindle Planet Gear Assemblies (32)
and install them on the pins of the Spindle.
9. For M, P or JJ ratio, install the Gear Head Spacer
(43) in the Gear Case against the Spindle Planet
Gears.
10. For M, P or R ratio, grease the splined hub of the
Gear Head (38) 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.
11. For M ratio, push the Gear Head Planet Gear
Bearings (42) into the Gear Head Planet Gears (41).
12. For M ratio, grease the assembled Gear Head Planet
Gears and Bearings and install them on the pins of the
Gear Head.
For P or R ratio, grease the bearings and gears of the
Gear Head Planet Gear Assemblies (39) and install
them on the pins of the Gear Head.
13. For H or J ratio, grease the Rotor Pinion (37) and
install it in the center of the Spindle Planet Gears.
Make certain the teeth of the Pinion and Planet Gears
mesh.
For M or P ratio, grease the Rotor Pinion (37) 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 (36)
in the shallow internal groove in the Gear Case
behind the Spindle Planet Gears or Gear Head Planet
Gears.
15. 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.
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.
16. Tighten the Gear Case between 30 to 35 ft–lb
(41 to 47 Nm) torque.
Assembly of the Angle Attachment
1. Lubricate Bevel Pinion (107 or 108) as instructed in
Lubrication and insert it, gear end first, into the long
bore of Angle Head (101).
2. Lubricate the Bevel Pinion Bearing (109) as
instructed in Lubrication and insert it, unstamped
end first, into the bore of the Angle Head, after the
Bevel Pinion.
3. For 7L1A1 Angle Head, use No. 7L1A–950 Bearing
Inserting Tool and press the Bevel Pinion Bearing so
the stamped face is a maximum of 2.40” (61 mm) but
not less than 2.38” (60.5 mm) below the end face of
the Angle Head.
For 7L12A4 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 Head.
For 7L3A4 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 Head.
Check to make sure the Pinion Bearing Spacer
Retainer (114) is completely seated.
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Страница 16: ...16 MAINTENANCE SECTION Dwg TPB791 ANGLE ATTACHMENTS ...
Страница 26: ...26 NOTES ...
Страница 27: ...27 NOTES ...