11
MAINTENANCE
DANGER:
Unplug power cord before any cleaning operation is started.
For diaphragm replacement, disassemble top part of the Pump Head. Then
unscrew the diaphragm and install the new diaphragm. Reassemble the
Pump Head. It is good practice to replace the Pump Head when the
diaphragm is replaced. This ensures new, clean valves and maximum per-
formance. Dirty valves will reduce performance.
Do not disassemble the pump housing from the motor. Proper assembly
(factory-adjusted) is critical for proper pump performance.
Keep the pump enclosure clean by using a mild detergent solution. Never
immerse nor use excessive fluid when cleaning the pump.
PUMP HEAD REPLACEMENT PARTS LIST
Item
Part No.
Service Kit (Reinforced FLUOREL diaphragm,
420-9005
two retainers, two valves and plastic head)
Service Kit Replacement
420-9004
DACRON-reinforced VITON diaphragm
Service Kit Eccentric Assembly
7530-75
Service Kit Housing
7530-78
Service Kit Diaphragm Shaft
7530-79
Service Kit Cover Bottom
7530-83
Pump Head Assembly (VALOX)
7530-77
SPECIAL APPLICATIONS
Technical information and advice concerning the use of this product in spe-
cific applications may be obtained from our Engineering Department. If vol-
ume justifies, modifications can be made to adapt the unit to special cus-
tomer applications. OEM inquiries are welcome and encouraged.
NOTE
The manufacturer reserves the right to make improvements in design,
construction and appearance of our products without notice.
Summary of Contents for 420-1901
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