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Assembly of the Impact Mechanism
TOP HAMMER
WIDE BEVEL UP
BOTTOM HAMMER
HALF–ROUND NOTCH ON LEFT
1.
Coat the Hammers (67) with a light film of
Ingersoll–Rand Grease No. 100.
2.
Replace the Hammers in the Hammer Frame Assembly
(65) exactly as they were when you marked them prior
to disassembly.
If you are installing new Hammers, or want to
change the location of the existing Hammers to
utilize both impacting surfaces, slide the Hammers
in the Hammer Frame so that the half–round notch
on one Hammer is located on one side of the Frame
and the half–round notch on the other Hammer is
located on the other side of the Frame.
Each Hammer is undercut on one side. When
properly installed in the Hammer Frame, these
undercuts must face each other.
MAINTENANCE SECTION
TOP HAMMER
HALF–ROUND NOTCH ON RIGHT
BOTTOM HAMMER
WIDE BEVEL DOWN
(Dwg. TPD652)
3.
Replace Hammer Pins (66).
4.
Examine the base of the Anvil (68 or 69) and note its
contour. While looking down through the Hammer
Frame, swing the top Hammer to its full extreme one
way or the other until you can match the contour of the
Anvil. Put the Anvil into the Hammer Frame and
through the first Hammer. Swing the bottom Hammer
in the opposite direction from the top Hammer and
maneuver the Anvil slightly until it drops through the
bottom Hammer.
Assembly of the Impactool
1.
Secure Impactool in vise.
2.
Reinstall the Hammer Case Assembly (69).
3.
Secure the Hammer Case Assembly with four Hammer
Case Cap Screws (72). Tighten to 20–25 ft–lb
(27–34 Nm) torque.
4.
Remove Impactool from vise.
CAP SCREW SPECIFICATIONS
Tighten the Hammer Case Cap Screws to a minimum of
20 ft–lb (27.1 Nm) torque.
Tighten the Housing Cover Cap Screws to a minimum of
10 ft–lb (13.5 Nm) torque.
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