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Pressure Relief Procedure 

2

311616D

Pressure Relief 
Procedure

1.

Set START/STOP switch to STOP. 

2.

Push in SECURE DISABLE switch.

3.

Open the back pressure regulator and all fluid drain 
valves in the system, having a waste container 
ready to catch drainage. Leave open until you are 
ready to pressurize system again.

4.

Check that pressure gauges on fluid supply and 
return lines read zero. If gauges do not read zero, 
determine cause and carefully relieve pressure by 
VERY SLOWLY loosening a fitting. Clear obstruc-
tion before pressurizing system again.

Kit Parts

NOTE: Slider Bearing Kit 15H882 includes parts to 
rebuild both slider bearing assemblies. Parts included in 
the kit are marked with an asterisk, for example (5*). 
Use all the new parts in the kit.

Parts designated n/a are not available separately.

Kit Installation

Disassembly

1.

Jog the motor to bring the pump on the side being 
repaired to the bottom of its stroke. This provides 
access to the coupling nut (14).

2.

Relieve pressure, page 2.

3.

Shut off electrical power to the unit. 

4.

Remove two screws (12) and the cover. F

IG

. 1 

shows the cover (32) on the stand side; the motor 
side cover is (21). 

System pressure can cause the pump to cycle unex-
pectedly, which could result in serious injury from 
splashing or moving parts.

Ref. 
No.

Part No. Description

Qty

5*

n/a

SCREW, cap, socket-head; 5/8-11 
x 3 in. (76 mm)

4

8*

n/a

SLIDER BEARING

4

12*

116719 SCREW, 8-32 hex washer head

4

F

IG

. 1. Remove Coupling Nut

ti9223d

3

12

14

9

Place clean rag over slider cylinder (2).

Hold slider piston (9) flats with 3/4 in. wrench, and brace 
against tie rod (3).

9

10

10

32

72

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