2
47156310_ed2
WARNING
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.
Note:
When reading the instructions, refer to exploded diagrams in parts Information Manuals when applicable (see under Related Documentation
for form numbers).
Changing the Pulse Mechanism Fluid
To change the Mechanism Fluid in the Impulse Mechanism, proceed
as follows:
1. Use jig P to remove Hammer Case (99) from motor case assembly.
2. Using an adjustable wrench, unscrew the Motor Case Assembly
(1) from the Hammer Case (99). This is a left-handed thread, rotate
the Motor Case (1) clockwise to remove it.
(Refer to Dwg. TPD1264)
CLOCKWISE TO LOOSEN
(Dwg. TPD1264)
3. Lift the assembled motor off the Hammer Case and pull the
mechanism assembly out of the Cover.
4. With the assembled mechanism off of the Rotor, use Straight Slot
Screwdriver to unscrew and remove one of the Oil Plug (91) and
O-Ring (92) from the front end of the Mechanism.
5. Using the 1.5 mm hex wrench furnished with the tool, rotate the
Torque Adjustment Screw counterclockwise until it stops. This
screw adjusts the check valve.
6. With the oil plug opening downward over a container, rotate the
Main Shaft (80) to purge the fluid from the mechanism.
7. Using the syringe and fluid from the Fluid Replacement
Kit (Part No. EQ106S-K400), fill the mechanism with the fluid
furnished with the Kit until the fluid overflows the fill hole.
(Refer to Dwg. TPD1265.)
NOTICE
DO NOT SUBSTITUTE ANY OTHER FLUID. Failure to use the
impulse mechanism fluid provided could damage the tool,
increase maintenance and decrease performance. Use only clean
fluid in these tools.
(Dwg. TPD1265)
8. Submerge the mechanism in a reservoir containing mechanism
fluid, and using a wrench, rotate the Drive Shaft clockwise and
counterclockwise to purge any remaining air from the system.
9. Remove the mechanism from the fluid and rotate the Adjustment
Screw clockwise until it stops.
10. Thread the Oil Plug (91) with the O-Ring (92) into the mechanism
until it is snug.
11. Wipe the outside of the mechanism dry and clean and remove
the Oil Plug (91).
12. Install the Oil Chamber Plug and tighten it between 20 and
25 in-lb (2.3 and 2.8 Nm) torque.
13. Insert the mechanism assembly (with output end leading) into
the Mechanism Cover clamped in the vise jaws.
14. Insert the hex end of the rotor shaft into the hex recess at the rear
of the Drive Shaft and thread the assembled Motor Housing onto
the Mechanism. Use Jig P to assemble. Rotate counterclockwise
to tighten.
JIG P
16. Test the tool for torque at maximum, minimum and mid-range
torque settings. If the tool does not perform satisfactorily, repeat
the refill procedure and pay particular attention to removing
unwanted air from the fluid system. Refer to the section TORQUE
ADJUSTMENT, in Manual 47156203, for specific adjustment
procedures.
Disassembly
General Instructions
Do not disassemble the tool any further than necessary to replace
or repair damaged parts.
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.
Do not remove any part which is a press fit in or on an assembly
unless the removal of that part is necessary for repairs or
replacement.
1.
2.
3.
Removal of Hammer Case
CLOCKWISE TO LOOSEN
(Dwg. TPD1264)
1. Use jig P to remove Hammer Case (99) from motor case assembly.
2. Using an adjustable wrench, unscrew the Motor Housing Assembly
from the Hammer Case. This is a left-handed thread, rotate the
Motor Housing clockwise to remove it. (Refer to Dwg. TPD1264.)
