9
➤
➤
8
➤
➤
4
➤
➤
7
➤
➤
1
6
➤
➤
5
➤
➤
4
➤
➤
3
➤
➤
2
➤
10
➤
➤
12
➤
13
➤
16
➤
14
➤
11
15
➤
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18
➤
19
➤
22
➤
20
➤
➤
17
21
V-227D
Service Procedures
To disassemble unit, use the following procedure:
Remove fasteners anchoring foot base assembly. (The base
can be removed from the body by removing 4 pan head screws
using a Philips screwdriver.) To remove the stem, stem guide,
and seals from the body, unscrew the end plug using a 3/8"
Allen wrench. Gently press on the “pin” side of the stem until it
slides out of the body. The stem guide may be removed by
pulling axially on the radial holes drilled in the stem guide. Be
careful not to scratch the sealing surfaces or cut the seals.
Thoroughly clean the valve body bore and stem guide, and
inspect for possible nicks, scratches and material imperfections.
Lightly lubricate the stem seals. (Use a non-detergent hydro-
carbon based oil or grease.) Replace any o-rings or other
seals if they are damaged.
The Assembly procedure is the reverse of the above. Tighten
the end plug to 60 in-lbs and apply 15-18 in-lbs of torque to
the pan head mounting screws. Re-attach the base.
If you have questions concerning how to service this unit,
contact your local authorized dealer or your customer service
representative.
Maintenance & Trouble Shooting Hints:
Air Leakage Through Exhaust Ports:
1. Check for internal leakage in cylinder being operated by
valve.
2. Check center stem seal for nicks, cracks, peeling and/or
delamination.
3. Check for missing, damaged, swollen, or incorrectly
assembled o-rings and gaskets.
4. Check stem guide and body bore for nicks, scratches,
and dirt particles.
Replace worn or damaged parts. Re-assemble and re-test
unit.
Service Kit and Parts Available
Valve Body Service Kit:
(consists of items # 3, 4, 5, 7, 8, & 9)
PL502500
Valve Body Assemblies:
C25 (1/4" NPTF Ports)
PL2234
C37 (3/8" NPTF Ports)
PL2238
Base Assemblies:
Non-Locking
PL2224
Locking
PL2225
Part Identification List
Item #
Description
1
Valve Body Assembly
2
Valve Body
3
Stem Retainer Snap Ring
4
Stem O-ring
5
Stem
6
Stem Guide
7
Stem Guide Gasket
8
Stem Guide O-ring
9
Stem Return Spring
10
End Plug
11
Base Assembly (Non-Locking)
12
Base
13
Treadle Pin
14
Treadle Pin Snap Ring
15
Treadle Spacer
16
Treadle
17
Base Assembly (Locking)
18
Base
19
Treadle Pin
20
Treadle Pin Snap Ring
21
Release Trigger
22
Treadle
23
Spring Latch (not shown)
Non-Locking Base Assembly
Locking Base Assembly
