Doc No: OMM50001243
Rev: C Page 44 of 68
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10.3.2.3
Installation of Disc Valves
The suction valves must be installed before the discharge valves can be installed. The
following reassembly procedure is applicable for both.
1. Select a new valve assembly and check to ensure the taper on the valve is clean.
2. Carefully clean the taper in the fluid cylinder and on the valve seat with a cleaning
solution and a clean cloth. Small scratches can be removed with steel wool or
100 grit emery paper. Remove all dirt, grease, oil, water, or any other
contaminants from the surfaces. Do not oil the seats or the seating surfaces in
the fluid cylinder. Confirm that they are dry before installation.
3. Position the valve assembly directly over the mating taper in the fluid cylinder.
4. Let the valve seat drop into the taper. Check to see that the seat is sitting in the
taper properly and not cocked to one side. If the seat drops straight, it will seize
on the taper. When correctly seated, it cannot be pulled up by hand.
5. Place the installation tool P534696 on the top surface of the valve assembly and
strike with a hammer three times to seat the valve.
6. Repeat steps 1 through 5 for the discharge valve.
10.3.3
Valve Removal and Installation Tools
Refer to the tables below for available valve installation and removal tools.
Table 5: AR Valve Tool Guide
VALVE TYPE
VALVE SIZE
INSTALL / REMOVAL TOOLS
AR
Series 3 & 23
P504436
–
Installation and Knock-
out tool
P503030
–
Eccentric puller
Table 6: Disc Valve Tool Guide
VALVE TYPE
VALVE SIZE
INSTALL / REMOVAL TOOLS
Disc
Small Disc
P534695 - Knock-out tool / Ball
Type
P534696
–
Installation Tool
Adapter