Replace Throat Packings
2
334128B
Replace Throat Packings
NOTE:
The throat packings are available as a
pre-assembled kit.
1. Follow the Pressure Relief Procedure in your pump
operation manual.
2. Unscrew the packing nut (N) using a pipe wrench.
Remove the o-ring (6) and washer (5) from the
bottom of the packing housing (4) or from the outlet
housing (H).
3. Place the flats of the packing nut (N) in a vise.
Unscrew the packing housing (4) and discard it and
the packings. Remove the washer (3), seal (2), and
backup washer (1) from the packing nut.
4. The throat repair kit is pre-assembled. Screw the kit
into the packing nut (N), making sure that the
backup washer (1), seal (2), and washer (3) are
properly positioned on top of the packing housing
(4), with the lips of the seal facing down. Torque the
packing housing (4) to 225 ±10 ft-lb (305 ± 14 N•m).
5. Before installing packing housing into pump,
generously lubricate seals with high temperature
grease supplied with repair kit.
6. Before installing packing housing into pump,
generously lubricate seals with high temperature
grease supplied with repair kit.
7. Screw the packing nut (N) and packing housing (4)
into the outlet housing (H). Torque to 150 ± 30 ft-lb
(203 ± 41 N•m).
WARNING
PRESSURIZED FLUID HAZARD
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury from
pressurized fluid, such as skin injection, splashing
fluid and moving parts, follow the Pressure Relief
Procedure in your pump operation manual when you
stop pumping and before cleaning, checking or
servicing the equipment.
PERSONAL PROTECTIVE EQUIPMENT
Wear appropriate protective equipment when in the
work area to help prevent serious injury, including eye
injury, hearing loss, inhalation of toxic fumes, and
burns.
Pump
Throat Seal Repair Kit
24W152
24V752
24W153
24V753
24W150
24V752
24W151
24V753
WLD
1
2
3
Torque to 225
±
10 ft-lb (305
±
14 N•m).
Torque to 150
±
30 ft-lb (203
±
41 N•m).
Lips of u-cup must face down.
1
3
2
2
4
5
6
H
N
