Maintenance Section - Ingersoll Rand DOOSAN IR2PS Manual Del Usuario

WARNI NG
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.
DISASSEMBLY
General 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.
3. Do not remove any part which is a press fit 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 replacement.
5. Clean the exterior of the Pickhammer before
disassembly.
6. Provide a clean work area for disassembling
the Pickhammer.
7. Handle all parts carefully. Hardened parts may chip
or break if dropped on a hard surface.
8. Probe all porting to loosen and clean out all foreign
matter. Place small parts in a clean box
to prevent loss.
Disassembly of the Pickhammer
For IR3PS and IR5PS
1. Grasp the Handle (1) firmly in leather–covered
or copper–covered vise jaws with the Cylinder
(22) upward and remove handle locking screw (25).
CAUTI ON
Do not exert extreme pressure on the Handle.
The Handle can be cracked if the vise is
tightened excessively.
2. Using a large adjustable wrench on the flats of the
Cylinder, loosen the Cylinder.
N OTI CE
Do not loosen the Cylinder unless a new O–ring
(11) is available. This O–ring is usually damaged
during disassembly.

MAINTENANCE SECTION

3. Remove the Pickhammer from the vise and unscrew
the Cylinder from the Handle.
4. For Model IR3PS, remove the Cylinder Spacer (12),
Washer Guide (13), Spring Washer Assembly (15),
Piston Shield (17) and Piston (21) from the Cylinder.
For Model IR5PS, remove the Cylinder Spacer (12),
Upper Valve Seat (14), Valve (18), Lower Valve Seat
(19), Piston Bumper (16), two Valve Pins (20) and
Piston (21) from the Cylinder.
5. Remove the O–ring from the Cylinder.
6. For Model IR5PS, press the Nozzle (23) from the
Cylinder if the Nozzle requires replacement.
7. Using a wrench, remove the Inlet Bushing Assembly
(10) from the Handle.
8. Remove the Throttle Valve Spring (9), Throttle Valve
Pin (8), Throttle Valve Face (7) and the Throttle
Valve Stem (6).
9. If the Throttle Valve Stem Bushing (5) requires
replacement, press the Throttle Lever Pin (3) from the
Handle and remove the Throttle Lever (2). Using an
arbor press and a rod that fits into the throttle lever
slot, press the Bushing out of the Handle through the
Inlet Bushing opening.
10. If the Throttle Valve Stem Bushing (5) requires
replacement, press the Throttle Lever Pin (3) from the
Handle, and remove the Safety Throttle Lever (1A).
Using an arbor press and a rod that fits into the
throttle lever slot, press the Bushing out of the Handle
through the Inlet Bushing opening.
11. If the Safety Lever (1B) requires replacement, press
the Safety Lever Pin (1C) from the Handle, and
remove the Safety Lever and the Safety Lever Spring.
For IR2PS
1. Grasp the Handle (1) firmly in the leather–covered or
copper–covered vise jaws with Cylinder (19) upward.
Do not exert extreme pressure on the Handle.
The Handle can be cracked if the vise is
tightened excessively.
2. Remove the Retainer (29).
3. Remove the Deflector (28) from the Cylinder.
4. Remove the Handle Pin (25).
5. Using a large adjustable wrench on the flats of the
Cylinder, loosen the Cylinder.
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CAUTIO N