14
Observe the lower driver body, it should
appear as shown in
Fig. 12
. The anvil o-
ring retainer (p/n 301115) will sometimes
be removed with the lower driver body or
remain in place at the base of the cylinder
of the upper driver body.
Remove the anvil o-ring cup (p/n 301095)
and the anvil (p/n 301165). This can be ac-
complished by pushing a hammer handle
into the chuck tube from the opposite side.
When the parts are removed, note the or-
der and disassemble for inspection. Check
the anvil for damage. The anvil o-ring (p/n
301615) should be replaced at this time.
Clean the anvil and carefully replace the
anvil o-ring.
(Fig 13)
shows an anvil with
the o-ring in place.
Inspect inside the sleeve in the lower body
for damage. If the ledge that supports the
anvil o-ring cup is damaged, replace with
new sleeve (p/n 301038.)
Remove the large retainer o-ring seals
(p/n 301614-2) and the large retainer (p/n
301105) from the anvil o-ring cup. Inspect
the large retainer. The large retainer o-
ring seals should be replaced at this time.
Replace the large retainer if there are any
signs of damage or excessive wear.
The anvil o-ring retainer (p/n 301115) can
be removed from the end of the cylinder in
the post driver body by hand. Use caution
as it can become sharp with use of the
driver. Remove the hammer (p/n 301085),
piston and connecting rod assembly
(p/n 301075) by removing the crank pin
(p/n 300050). Access to the crank pin is
achieved by removing the crankcase cover
(p/n 300132), which is described in the
section titled “Servicing Crankshaft and
Piston Lubrication.” Remove the crank pin
using the 7/8
″
deep well socket.
The crank pin has
LEFT-HAND
THREADS
. Use caution stabilizing
the connecting rod and crankshaft (p/n
300040) to avoid damaging them. Use a
small wood or plastic block to keep the
crankshaft from rotating. When the crank
pin is removed, the piston, connecting rod,
and hammer can be removed by pushing
the connecting rod down into the cylinder
until it can be removed from the bottom
of the post driver body. Note position of
the hammer. The small end of the hammer
is toward the anvil as shown in (
Fig. 14
.)
Clean and inspect the hammer for damage.
The hammer o-ring seal (p/n 301610-2)
should be replaced at this time.
Multi-Pro
™
Service Instructions... continued
Fig. 14
-
Small end of Hammer is toward
the anvil.
Fig. 13
-
Anvil with O-ring in place.
!
WARNING
!
DANGER
!
CAUTION
IMPORTANT
NOTE
