ARO GV08A-03S-7 Manuale dell'operatore - Pagina 9
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13. Remove the Exhaust Deflector Front Seal (31) from
the Gear Case.
14. Work the Exhaust Silencer (29) out of the Exhaust
Deflector.
Disassembly of the Motor
1. If the Bearing Housing Spacer (27) remained with the
assembled motor, remove it.
2. Remove the Front Rotor Bearing Housing (24) and
the two Bearing Spring Washers (26).
3. Grasp the splined end of the Rotor and pull the
assembled motor from the Motor Housing (1).
4. Using a pair of external snap-ring pliers with just the
tips of the pliers inserted between the ends of the Rear
End Plate Retainer (17) spread the Retainer enough
to remove it from the groove in the hub of the Rotor.
Make certain the Retainer doesn't fly when it is
slipped off the hub of the Rotor.
5. Withdraw the Rear End Plate (16) Cylinder (20) and
Vanes (19).
6. While supporting the Front End Plate (21) between
two blocks of wood on the table of an arbor press,
press the Rotor from the Front Rotor Bearing (23).
Check the Bearing for damage or roughness by slowly
rotating it.
Do not remove the Rear Rotor Bearing (3) unless
you have a new Bearing on hand for replacement.
The old Bearing will be damaged during the
removal process.
7. To remove the Rear Rotor Bearing, thread a
No. 10-24 x 2" long cap screw, having at least l/2" of
thread, through the Bearing Nut (2) located behind the
Bearing. Keep tightening the screw to jack the
Bearing from the Motor Housing.
Disassembly of the Throttle
1. Remove the Inlet Bushing (7) and withdraw the Oiler
Body Assembly (10), Throttle Valve Spring (9) and
the Throttle Valve (8).
2. Remove the Throttle Lever Pin (5 A), Throttle
Lever (5) and withdraw the Throttle Plunger (6).
3. Do not remove the Throttle Valve Seat (4) unless you
have a new one on hand for replacement. The old seat
will be damaged during the removal process. To
remove the Throttle Valve Seat, thread a 3/8-24
thread cap screw about 3" or 4" long into the Seat;
grasp the head of the cap screw in a vise, and pull the
Seat from the handle.
ASSEMBLY
General Instructions
1
Always press on the inner ring of a ball-type bearing
when installing the bearing on a shaft.
2. Always press on the outer ring of a ball-type bearing
when pressing the bearing into a bearing recess.
3
Whenever grasping a tool or part in a vise. always use
leather-covered or copper-covered vise jaws. Take
extra care not to damage threads or distort housings.
4. Always clean every part and wipe every part with a
thin film of oil before installation.
5. Check every bearing for roughness. If an open bearing
must be cleaned, wash it thoroughly in a clean,
suitable, cleaning solution and dry with a clean cloth.
Sealed or shielded bearings should not be cleaned.
Work grease into every open bearing before
installation.
6. Apply a film of o-ring lubricant to every O-ring
before installation.
7. Unless otherwise noted, always press on the stamped
end of a needle bearing when installing a needle
bearing into a recess. Use a bearing inserting tool
similar to the one shown in Dwg. TPD786.
Needle Bearing Inserting Tool
SHOULDER TO
REGULATE DEPTH
PILOT TO FIT I.D. OF
LENGTH OF PILOT TO BE
APPROXIMATELY 1/8"
LESS THAN LENGTH OF
BEARING
(Dwg. TPD786)
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