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. Failure to do so could result in
injury.
LUBRICATION
Whenever one of these Grinders is disassembled for
overhaul or replacement of parts, lubricate as follows:
1.
Always wipe the Blades (23) with a light film of the
recommended oil before inserting them into the vane
slots.
2.
Inject 0.5 to 1 cc of Ingersoll–Rand Lubricant No. 10
or a good quality high–speed spindle oil into the Valve
Body (6) after assembly.
DISASSEMBLY
The Model DG600G2 Pencil Grinder can be disassembled
into three major unit assemblies. They are the Valve Body
Assembly (4), the Motor Assembly (17) and the Air Block
Assembly (13). Do not disassemble any major unit
assembly that does not require repair.
General Disassembly Instructions
1.
Do not disassemble the tool any further than necessary
to replace or repair damaged parts.
2.
When grasping a tool or 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.
Disassembly of the Tool
1.
Remove Snap Ring (1) and Exhaust Sleeve (2),
allowing removal of Hose Assembly (3).
Do not grasp the Motor Housing (28) with pliers or
in a vise.
2.
Carefully grasp the flats on the Hose Assembly in a
vise.
3.
Using 9/16" wrench on flats on the Valve Body, loosen
and remove tool from Hose Assembly.
MAINTENANCE SECTION
4.
5.
6.
7.
8.
Disassembly of the Valve Body
1.
2.
3.
4.
5.
6.
Disassembly of the Motor
1.
2.
3.
4.
Disassembly of the Air Block Assembly
1.
2.
15
Reposition tool in vise and carefully grasp on the flats
of the Valve Body.
Remove Sleeve (29) by twisting and pulling upward.
Place tool horizontally in a suitable holding device and
clamp on one of the bottom two grooves of Motor
Housing (28).
Using 9/16" wrench on flats of Valve Body loosen and
remove from Motor Housing (28).
The Motor Assembly and Air Block Assembly will
be free to fall out of the Motor Housing when the
Housing is lifted from the Valve Body.
Remove the Motor Housing from the vise.
Remove Screen (5).
Remove Throttle (12).
Using a pair of pliers remove Plug (9), being careful
not to damage.
Using needle nose pliers remove Valve (10) from Valve
Body.
Remove O–rings (11), if necessary.
Remove Bushing (8) and O–ring (7), if necessary.
Do not disassemble the Rotor components unless
damage is evident.
Place Motor Assembly (17) in suitable holding device
with Ball Bearing (18) facing upwards.
Place a punch on the i.d. of the Bearing and tap to
remove Bearing, allowing removal of End Plate (24),
Cylinder (21) and Blades (23).
Place Rotor in special holding device, using wrench
47579 on flats of Collet body (26) loosen and remove
from Rotor (22).
Using a punch, tap on i.d. of Rotor and remove Bearing
(25) and End Plate (24).
Grasp Air Block Assembly (13) and pull apart from
Motor Assembly.
Remove Screen (15) and Snap Ring (14), if necessary.