18
177-999H
T100 Series Medium - Power End Service
Power End Disassembly
WARNING: Crankcase (2) and assembled parts weigh
over 400 pounds (181 kg) and are a two man lift. Use
care in handling to prevent personal injury or damage
to equipment.
Float Switch Back Cover Disassembly
Note: The numbers in parentheses are the Reference
Numbers shown in the Parts Section of the manual.
a. Disconnect float switch (48).
b. Remove float switch adapter (47) with float switch and
O-ring (46) from back cover (12).
c. Remove float switch from float switch adapter.
d. Remove twelve screws (16) from crankcase (2).
e. Remove back cover and baffle (13).
f. Remove eight screws (45) from assembled frame (44)
and back cover.
g. Disassemble frame, gasket (43), sight glass (42),
and thick gasket (41).
Crankcase Disassembly
a. Remove Fluid End and Hydraulic plate as outlined in two
preceding sections.
b.
See Power End Parts Illustration.
Remove drain plug (40),
cap with o-ring (25), dipstick (32), and crankshaft key (31)
and drain lubricating fluid into a suitable container.
c. Remove 12 cap screws (16) and remove back cover (12)
and back cover baffle (13).
Connecting Rod Removal
Note: Each of three Connecting rod assemblies (3*)
consists of: connecting rod, connecting rod end cap,
sleeve, and two bolts.
a. Remove connecting rod assembly bolts (3*) and remove
connecting rod end cap (3*) with split shell bearing. Make
sure numbers on connecting rod and end cap are 'top-up'
in the assembly and match.
Note: Make sure to note 'top-up' orientation of numbers
on connecting rod and end cap when removing. These
are matched parts and must be stored together as one
assembly and not mixed with any other connecting rod
assemblies or parts.
b. Set aside connecting rod assembly bolts, end cap, and one
half split shell bearing (8) for use in reassembly.
c. Remove connecting rod assembly from crankshaft by
reaching into rear of crankcase (2) around crankshaft (1).
Push connecting rod assembly away from journal on the
crankshaft. Move as far forward as possible.
d. Repeat removal for three sets.
Crankshaft Removal
a. Remove six cap screws (15) from one side of pump attaching
seal and bearing assembly (assembled items 6, 7, 9, 11, 15,
17, and 18) to the crankcase (2).
b. Carefully remove crankshaft (1) with seal and bearing
assembly from crankcase.
c. Remove seal and bearing assembly from end of crankshaft.
d. Remove six screws (15) and remaining seal and bearing
assembly from crankcase.
Seal and Bearing Disassembly
a. Separate seal and bearing assemblies by removing six cap
screws (15).
b. Remove O-ring (17) from bearing cover (6). Remove roller
bearing (7) from bearing cover.
c. Remove O-ring (18) from seal cover (9). Remove two
crankshaft seals (11) from seal cover.
d. Disassemble two sets.
Connecting Rod Disassembly
Note: Make sure to note 'top-up' orientation of numbers
on connecting rod and end cap when storing. These are
matched parts and must not be mixed with parts from other
connecting rod assemblies.
a. Pull out connecting rod/plunger assembly and remove from
crankcase.
b. Remove remaining one half of split shell bearing (8) from
connecting rod (3*). Match with shell bearing already
removed in
Connecting Rod Removal
.
c. Retrieve bolts (3*), and end cap (3*) from previous step in
Connecting Rod Removal
. Be careful not to mix with parts
from other connecting rod assemblies.
d. Loosely assemble two bolts, and connecting rod end cap
with connecting rod assembly and set aside. Note proper
orientation of numbers on connecting rod and end cap.
e. Remove setscrew (23) to unlock wrist pin (5). Remove wrist
pin, assembled plunger and slider from connecting rod.
Note alignment marks on wrist pin and alignment mark on
crosshead (4).
f. Disassemble and remove three sets.
Plunger Disassembly
a. Remove shoulder screw (29) from plunger assembly to
remove plunger (51), spherical washer (27), slider (4), and
belleville spring (28).
b. Disassemble three sets as in step a.
c. Clean crankcase for later reassembly.
