Repair
12
308390N
Assembly After Replacing
Throat Seals
Refer to F
. 5 for the following instructions.
1. Apply fresh grease to new throat seal (110) and
mating groove in base (115). Install new throat seal.
NOTE:
Be careful not to scratch the outside of the pis-
ton rod.
2. Push the piston rod (116) down through the base
(115) and install.
3. Install the bolts (105) and washer (103). Torque to
20-25 ft-lbs (27-34 N.m).
4. Apply Loctite
®
609 to the threads on the piston
(117). Install the ball (104). Screw the piston into the
piston rod (116).
5. Place the piston (117) in a vise and tighten the pis-
ton rod (116). Torque to 155-175 ft-lbs (210-237
N.m).
6. Apply fresh grease and install a new o-ring (112) on
the pump cylinder (118).
7. Using a strap wrench on the pump cylinder (118)
screw it tightly into the base (115).
Reciprocator Repair
NOTE:
•
Clean and inspect all parts for wear or damage.
Replace parts as needed. For the best results,
always replace all the o-rings and seals when
you disassemble the pump.
•
Assembly Tool 189305 is required for reassem-
bling the reciprocator.
•
For step 9 and 10, Loctite 242
®
thread sealant
and Loctite
®
Primer T or Perma-Loc
®
115
thread sealant and Perma-Bond
®
surface con-
ditioner are required. Be sure their shelf life is
within the manufacturer’s recommendations.
Before beginning, drain the oil out of the reciprocator as
follows:
a. Place the reciprocator in a drain pan.
b. Push the piston all the way up/in, then all the
way down/out.
1. Loosen both nuts on the inlet tube (57). Use a
wrench to rotate the tube fittings (16 and 17) to the
F
IG
. 5
7, 6
115
28
118
119
115
116
105
103
107
117
110
2
