TSE DPT60, Owner'S Manual

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56
Series 90 Minor Repair Instructions
Pump Minor Repairs
Remove Multi-Function
Valve Cartridge
Install and Torque Cartridge
Multi-Function Valve Cartridge Components
(Later production)
Multi-Function Valve Cartridge Components
(Earlier production)
90000276 90000277
90000278
90000279
Multi-Function Valve Cartridge Sectional View
90000869E
Multi-Function Valve Cartridges
1. The multi-function valve cartridge is removed with a
hex wrench on the largest hex on the cartridge.
e z i S e m a r F e z i S h c n e r W
0 0 1 - 0 3 0 h c n i 4 / 1 - 1
0 5 2 - 0 3 1 h c n i 8 / 5 - 1
E 4 8 2 2 0 0 T
2. Inspect cartridge for damage to parts and O-rings.
The multi-function valve cartridge may be disas-
sembled for cleaning. However, if the pressure limiter
housing assembly is disassembled, the pressure
settings must be readjusted. Usually, if there is
contamination problem, it will be in the valve seat
assembly. If it is not necessary to clean the interior of
the cartridge, proceed to step 7.
Note: Multi-function valve components are not sold
separately as service parts (except O-rings).
3. On early versions of the multi-function valves, the
valve seat assembly is held by a retaining ring.
Remove retaining ring with a snap ring pliers.
On late versions, the valve seat section is pressed over
a lip. Place the cartridge in a vise and pry the lower
section off with an appropriate tool. Maintain sufficient
control to prevent the contents from flying loose.
4. Remove pressure limiter lock nut and bypass actuator.
5. Unscrew the pressure limiter adjustment screw from
the bypass actuator. Clean and inspect all disas-
sembled parts.
6. Reassemble with new, lightly lubricated O-rings by
reversing the above procedure. For early versions
assemble with the retaining ring. For late versions,
place the cartridge in a vise and press on lower
assembly.
High Pressure
Relief/Check
Valve Poppet
Spring Seat
Check Valve
Poppet
Valve Seat
Spring
Pressure Limiter
Valve Poppet
Pressure Limiter
Valve Poppet
Pressure Limiter
Valve Spring
Bypass
Actuator
Pressure Limiter
Adjustment Screw
Pressure Limiter
Lock Nut
Pressure Limiter
Housing
Caution
The pressure settings must be readjusted after
disassembling the pressure limiter housing of the
multi-function valve cartridge.
S000 018E
7. Install cartridge in multi-function valve cavity and torque.
e z i S e m a r F e u q r o T
0 0 1 - 0 3 0 ) t f • f b l 6 6 ( m N 9 8
0 5 2 - 0 3 1 ) t f • f b l 5 5 1 ( m N 0 1 2
E 5 8 2 2 0 0 T
Do not overtorque the multi-function valve cartridge.