Ingersoll Rand DOOSAN IR2PS Manual Del Usuario página 65

6. Remove the Pickhammer from the vise and unscrew
the Cylinder from the Handle.
7. Remove the Spacer Rings (30), Valve (12), Valve Box
(13), Valve Pin (18) and Piston (20) from the Cylinder.
8. Press the Nozzle (21) from the Cylinder if the Nozzle
requires replacement.
9. Using a wrench, remove the Valve Stopper (7) from
the Handle.
10. Remove the Throttle Valve Spring (6), Throttle Valve
Face (4) and Throttle Valve Stem (8) from the Handle.
11. If the Inlet Bushing (10) requires replacement,
remove the Inlet Bushing from the Handle by using
a wrench.
ASSEMBLY
General Instructions
1. 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.
2. Always clean every part and wipe every part with a
thin film of clean oil before installation.
3. Apply a film of O–ring lubricant to all O–rings before
final assembly.
4. Except for press fits, parts should fit together easily.
If force is required to assemble parts, the parts are
out of alignment and must be correctly aligned
to prevent binding and damage.
Assembly of the Pickhammer
For IR3PS and IR5PS
1. If the Throttle Valve Stem Bushing (5) was removed,
press a new Bushing into the Handle (1).
2. Position the Throttle Lever (2) in the Handle and
secure it by pressing the Throttle Lever Pin (3) into
the Handle and through the Throttle Lever.
3. If the Safety Lever (1B) was removed, position the
Safety Lever and the Safety Lever Spring (1D) in the
Handle, with the "U"–shape of the Spring inside the
angle made by the Safety Lever. Secure them by
pressing the Safety Lever Pin (1C) into the Handle,
and through the Safety Lever and Spring.
N OTI CE
Safety system is to be fitted only with adapted
Safety Throttle Lever (1A).
4. Position the Safety Throttle Lever in the Handle,
adjusting the "L"–shape of the Safety Lever Spring
against the edge of the Throttle Lever. Secure it by
pressing the Throttle Lever Pin (3) into the Handle,
and through the Safety Throttle Lever.
5. Insert the Throttle Valve Stem (6) into the Throttle
Valve Stem Bushing.
6. Position the slotted end of the Throttle Valve Face (7)
against the Throttle Valve Stem.
7. Install the smaller diameter end of the Throttle Valve
Spring (9) on the short hub of the Throttle Valve
Pin (8). Using the Spring to hold the Pin, install the
long end of the Throttle Valve Pin into the Throttle
Valve Face.
MAINTENANCE SECTION
8. Install the Inlet Bushing Seal (10A) on the Inlet
Bushing (10) and thread the Inlet Bushing Assembly
into the Handle and tighten it to 9 ft–lb
(12 Nm) torque.
9. For Model IR5PS, press the new Nozzle (23) into the
front end of the Cylinder (22) if the Nozzle
required replacement.
10. Install the O–ring (11) in the groove adjacent to the
threads on the exterior of the Cylinder.
11. Insert the Piston (21) into the rear end of the Cylinder.
12. For Model IR3PS, proceed as follows:
a. Install the Piston Shield (17) in the threaded end
of the Cylinder with the shallow counterbored
surface toward the Piston.
b. Stack the three Spring Washers (15) together and
position them, concave side first, against the
Piston Shield.
c. Insert the small diameter hub of the Washer Guide
(13) into the central opening of the Spring Washers.
d. Position the Cylinder Spacer (12) against the
threaded end of the Cylinder and thread the
Handle onto the Cylinder.
For Model IR5PS, proceed as follows:
a. Insert the two Valve Pins (20) into the holes in the
threaded end of the Cylinder.
b. If the Piston Bumper (16) was separated from the
Lower Valve Seat (19) during disassembly, work
the large diameter of the Piston Bumper into the
counterbore of the Lower Valve Seat until the
Bumper is seated squarely against the Valve Seat.
c. Slide the Lower Valve Seat, Piston Bumper first,
onto the two Pins and against the Cylinder.
d. Position the Valve (18) in the counterbore of the
Upper Valve Seat (14) and slide the Upper Valve
Seat, Valve first, onto the Pins against the Lower
Valve Seat.
e. One or two Cylinder Spacers (12) have been
installed in these tools at the factory to locate the
Handle in the correct position at the Cylinder.
Install an identical number of Spacers of the same
thickness (1 or 2 mm thick) in the rear of the
Handle with the dished side of the Spacer facing
the Valve.
f. Thread the Handle onto the Cylinder.
13. Using a torque wrench, tighten the Cylinder between
46 and 54 Nm (34 and 40 lbs.ft ) torque.
14. Replace the handle locking screw (25). And tighten.
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