Page 24
housing is in highest position. Using
a socket and impact wrench or
special conn-rod wrench, remove
bottom 3 lock-nuts.
5. Remove three nuts on top of conn-rod.
FIGURE 4-3 Crosshead Assembly
6.
While moving the bearing housing in
an up and down motion, pull the
crosshead assembly forward, out the
front of the pump.
7.
Remove the Pony Rod from the
crosshead assembly.
8.
To remove the wrist pin, remove the
wrist-pin snap ring from either side.
9. Remove the wrist pin out the side of the
crosshead. The crosshead may now be
removed from the two-piece conn rod,
exposing the bronze thrust seat inside
the crosshead.
10. To remove the pivot head from the two
piece conn-rod cut the tie wire and
remove the four ¾”-16 Flange Bolts.
Conn-Rod Bearing Housings
1.
To remove the conn-rod bearing
housing, remove the four (4) cap
screws retaining the bearing cap.
2.
Remove the cap, noting that two
alignment pins PILOT the halves
together. Do not damage pins.
3.
CAUTION: Both halves are heavy.
4.
Remove
half-bearing
with
prying
action.
5.
Rod-half of bearing may be tapped on
one edge with a rubber hammer or
wooden handle to remove.
6.
Cap and Rod-half must stay together
as a unit for re-assembly. Re-
assembled unit must be free to move
on crankshaft.
Crosshead Guide and Stay Rods
1.
The crosshead guides or “slide” should
be replaced if excessively worn or
damaged. (See CLEARANCES pg. 33)
2.
If the crosshead guides must be
replaced, it is recommended that it be
done either by Gardner Denver or a
qualified machine shop.
3.
The stay rods are threaded into the
power frame. They can be easily
replaced by unscrewing and re-torquing
new rods. (See Torque on pg. 34)
4.
Typically, when failures of stay-rods do
occur, it is one of the outermost four.
5.
Check all stay rods for proper torque,
plus check for broken or cracked
threads.
6.
The stay rods need to be torqued to the
values shown on page 34 when they
are installed in the power end, as well
as when the nuts are torqued after
installing the fluid end.
Summary of Contents for C2500Q QUINTUPLEX
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