Alemite 7836-A Manual de serviço - Página 4

Procurar online ou descarregar pdf Manual de serviço para Unidade de controlo Alemite 7836-A. Alemite 7836-A 8 páginas.

SER 7836-A
Overhaul
NOTE: Refer to Figure 3 for compo-
nent identification on the major compo-
nents of the valve assembly.
Prior to performing any maintenance procedure,
the following safety precautions must be observed.
Personal injury may occur.
WARNING
Do not use halogenated hydrocarbon
solvents such as methylene chloride or 1,1,1
trichloroethane in this valve assembly. An
explosion can result within an enclosed device
capable of containing pressure when alumi-
num and/or zinc-plated parts come in contact
with halogenated hydrocarbon solvents.
Release all pressure within the system prior to
performing any overhaul procedure.
• Disconnect the air supply line from the
pump motor.
• Into an appropriate container, operate the
control valve to discharge remaining pres-
sure within the system.
Never point a control valve at any portion of
your body or another person. Accidental dis-
charge of pressure and/or material can result
in personal injury.
Read each step of the instructions carefully.
Make sure a proper understanding is achieved
before proceeding.
Disassembly
NOTE: The following procedures pertain to
both models of control valves.
IMPORTANT: Adapter (18) is under spring
pressure. Use care during removal.
1. Unscrew Adapter (18) from Body (9).
2. Remove Spring (19) from the Body.
3. Loosen Guide (20) from Nut (17).
4. Unscrew and remove the Guide and Nut from Rod
(5 or 8).
Revision (1-13)
10. Unscrew Packing Nut (15) from the Body.
11. Remove Brass Washer (14), four O-Rings (13), and Leather
12. Loosen Setscrews (10 and 11) that secure Pins (24 ) to the
13. Remove Handle (23) from the Body.
14. Unscrew Swivel Assembly (22) from the Body as required.

Clean and Inspect

Assembly
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5. Unscrew Valve Seat (2 or 6) from the Body.
• Remove Gasket (1) from the Valve Seat.
6. Push the Rod assembly out the front of the Body.
7. Remove Link (16) from Handle (23).
Step for Model 7836-A
8. Remove Pin (3) that secures Valve Assembly (4) to the Rod.
• Remove the Valve Assembly from the Rod.
Step for Model 7836-C1
9. Unscrew Valve Assembly (7) from the Rod.
HINT: Screw Nut (17) and Guide (20) onto the
Rod. Use the Guide as a jam on the Nut to break
the connection.
• Use Adjusting Pin (26) or a similar tool as required.
Washer (12) from the Body.
Body as required.
• Remove the Pins from the Body.
• Remove O-Ring (21).
1. Clean all metal parts in cleaning solvent. The solvent should
be environmentally safe.
2. Inspect all parts for wear and/or damage.
• Replace as necessary.
3. Closely inspect the mating surfaces of all components for
any imperfections. Ensure a smooth and clean contact is
obtained when assembled.
NOTE: Prior to assembly, certain components
require lubrication in oil. Refer to Table 2 for
details.
Item No.
12
Washer (Leather) [Soak for 1 Hour]
O-Ring, 1/4 " ID x 3/8 " OD
13
21
O-Ring, 11/16 " ID x 7/8 " OD
Table 2 Components Lubricated with Clean Oil
4
Control Valve
Description
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