ARO GV08A-06S-7 Benutzerhandbuch - Seite 8

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MAINTENANCE SECTION

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.

LUBRICATION

Each time a Sander or Polisher is disassembled for

maintenance and repair or replacement of parts. lubricate

the tool as follows:

1. Work approximately 1.5 cc of IRAX No. 28 Grease

into the Rear Rotor Bearing (3), Front Rotor

Bearing (23). Rear Arbor Bearing (37) and Front

Arbor Bearing (39).

2. Work approximately 4 to 6 cc of IRAX No. 28

Grease into the gear train. If the gear train is

disassembled, grease the Planet Gear Bearings (34),

the teeth of the Planet Gears (33). the teeth of the

Rotor Pinion (36) and the Planet Gear Shafts (35).

Work the grease into the gearing if the gear train is

not disassembled. Grease the teeth inside the Gear

Case (40).

3. Inject 1 to 2 cc of IRAX No. 10 Oil into the air

inlet before attaching the air hose. Remove the Oil

Chamber Plug and fill the oil chamber.

4. Moisten all O-rings with o-ring lubricant.

DISASSEMBLY

General Instructions

Do not disassemble the tool any further than

necessary to replace or repair damaged parts.

2. Whenever grasping a tool or a 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 lit 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

replacements.

Disassembly of the Sander or

Polisher

1. Sprag the Inner Wheel Flange (43) with a wrench and

unscrew and remove the Sanding Pad Assembly (44)

and the Pad Mounting Nut (44).

2. Remove the Pad Mounting Washers (44) from the

Arbor (32).

3. Carefully grasp the handle of the Motor Housing (1)

in a vise with leather-covered or copper-covered jaws

so that the Arbor is upward.

4. Using a wrench on the flats of the Gear Case (40),

loosen, but do not remove. the Gear Case.

Be certain

to hold the tool over the workbench to

prevent parts from becoming lost.

5. Remove the tool from the vise and. while keeping the

arbor in a horizontal position. unscrew the Gear Case

by hand and pull it away from the Motor Housing.

Disassembly of the Gear Case

Thread two 5/8-11 jam nuts onto the threaded end of

the Arbor and lock them together near the end of the

Arbor. Grasp the outermost jam nut in vise jaws and,

with an open end wrench, loosen the Inner Wheel

Flange (43). Unlock the two jam nuts, remove the

Arbor and Gear Case from the vise and unscrew and

remove the two jam nuts and the Inner Wheel Flange.

Using snap ring pliers, remove the Arbor Bearing

Retainer (42) from the Gear Case.

Grasping the threaded end of the Arbor, pull the

Arbor, Front Arbor Bearing (39), Arbor Bearing

Spacer (38) and Rear Arbor Bearing (37) from the

Gear Case.

Using a bearing puller, remove the Front Arbor

Bearing from the Arbor.

Remove the Arbor Bearing Spacer.

Using a bearing puller, remove the Rear Arbor

Bearing from the Arbor.

Press one of the Arbor Planet Gear Shafts (35) from

the Arbor and slide the Arbor Planet Gear (33) and

Planet Gear Bearing (34) from the Arbor.

For Models GV08A-05S-7 and GV08A-06S-7,

slide the Rotor Pinion (36) out of the opening created

by removing the Planet Gear.

Press the remaining Arbor Planet Gear Shafts from

the Arbor and remove the remaining Arbor Planet

Gears and Planet Gear Bearings.

10.

11.

12.

Do not remove the

Planet Gear Bearings from the

Arbor Planet Gears unless you have new Bearings

on hand for replacement. The old Bearings will be

damaged during the removal process.

Press the Planet Gear Bearings from the Arbor Planet

Gears.

Pull the Exhaust Deflector (28) from the Gear Case.

Remove the Exhaust Diffuser (29A) from the Exhaust

Deflector or the hub of the Motor Housing.