TM 5-3895-332-34
Section IV. REMOVAL AND INSTALLATION OF MAJOR COMPONENTS AND AUXILIARIES
(3) Check compression rings for wear in
2-6. General
accordance with table 1-1, Repair and Replacement
The cylinder is a stress relieved weldment, made from
Standards. Remove any sharp edges from anvil block
steel tubing and plate with the bore specially chrome
compression rings.
plated. The shape of the weldment forms the fuel and oil
(4) Lubricate the anvil block and compression
tanks.
rings with a light coat of lubricating oil.
c. Installation. Install the anvil block (fig. 2-3).
2-7. Buffer Assembly
a. General. The six buffer assemblies hold the
2-9. Vibration Damper and Shroud
anvil block to the cylinder and dampen the over-travel of
a. General. The vibration damper is located under
the anvil block when the driving is easy.
a shroud and isolates the cylinder from the shock
1). Removal. Remove the buffer assembly in numerical
vibration produced by the anvil block.
sequence. (fig. 2-1)
b. Removal. Remove the vibration damper and
shroud. (fig. 2-3)
c. Cleaning, Inspection and Repair.
c. Cleaning, Inspection and Repair.
(1) Clean all parts with an approved cleaning
(1) Clean all parts with an approved cleaning
solvent and dry thoroughly.
solvent and dry thoroughly.
(2) Inspect all parts for cracks, breaks and
Note. Do not clean belleville washers unless there Is
other damage. Replace a damaged or defective part.
evidence of and or dirt in grease.
(3) Check
vibration damper wear
in
accordance with table 1-1, Repair and Replacement
(2) Inspect all parts for cracks, breaks and
Standards. Replace a worn vibration damper.
other damage. Replace a damaged or defective part.
d. Installation. Install the vibration damper and
(3) If belleville washers are cleaned, repack
shroud. (fig. 2-3)
with automotive and artillery grease which is in
2-10. Thrust Bearing
accordance with military specification MIL-G10924.
a. General. Radial thrust or side thrust to the
d. Belleville Washers. The shock of the anvil is
hammer is transmitted to the leads through the thrust
absorbed by a set of 75 to 80 belleville washers
bearing.
assembled 3 in a series parallel, except for 2 in a series
b. Removal. Remove thrust bearing by tackwelding
parallel at the ends and middle. This sequence must be
two "L" shaped flame cut plates, 1 inch thick or greater,
maintained when the hammer is repaired. (fig. 2-2) The
to thrust bearing, 180 apart. Plate to be long enough to
free length of all stacks should be equal at 7-3. 4 inches.
Adjust free length by removing washers from end of
allow for height of jack between bottom flange of
stack. This determines the clearance between bolt head
hammer cylinder and plate ear. Jack evenly on both
and anvil which should not be less than 3,/4 inch. This
sides to remove thrust bearing. A cross tie bar between
dimension should govern the height of the belleville
the two plates may be necessary at times to prevent
washer stack. To adjust this clearance, remove or add
them from bending inward (fig. 2-4).
washers at top of stack equally on all buffers.
c. Cleaning, Inspection and Repair.
e. Installation. Install the buffer assembly in the
(1) Clean all parts with an approved cleaning
reverse of the numerical sequence. (fig. 2-1).
solvent and dry thoroughly.
(2) Inspect all parts for cracks, breaks, and
2-8. Anvil Block
other damage. Replace a damaged or defective part.
a. Removal. Remove the anvil block. (fig. 2-3).
(3) Check thrust bearing wear in accordance
b. Cleaning, Inspection and Repair.
with table 1-1, Repair and Replacement Standards.
(1) Clean all parts with an approved cleaning
Replace worn thrust bearing.
solvent and dry thoroughly.
(4) Lubricate the bearing surface with a light
(2) Inspect all parts for cracks, breaks and
coat of lubricating oil.
other damage. Replace a damaged or defective part.
2-2
