Heidolph VAC control automatic - Manual (Page 61)

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11.2.2. ROTAVAC valve tec
ROTAVAC valve tec
(2 ea. diaphragms, 4 ea. valves, special spanner)
11-300-009-16
valve 23-30-01-01-91
diaphragm 23-30-01-01-92
special spanner SW 46 02-07-02-01-13
tooling:
- special spanner SW 46 (comes with seal kit))
- box end spanner SW 15/17
- hex pin SW 4/5
- Phillips screwdriver size #2
Clean and inspect pump heads
ROTAVAC valve tec:
Loosen 6 ea. straight hex-recessed screws on pump head
and lift off cover ass'y. (cover, internal part, and lid):
 Never attempt to loosen parts with sharp tools
(screwdriver), use rubber hammer or compressed air
instead.
To inspect valves, carefully remove cover from lid. Denote
location of valves and remove.
 Replace damaged valves.
Remove contamination with cleaning agent.
Inspect diaphragm for damage and replace on condition.