Casella-cel AFC123 Manual do Utilizador descarregar pdf (Página 7)

Casella USA

17 Old Nashua Road #15

Amherst, NH 03031

Web www.casellausa.com

TF (800) 366-2966

AFC123 Personal Sampler. Page 7

Handbook No. HB3182-02 Issue2/JULY 1994

Pump Unit. (Fig. 1).

Note:- Servicing and reassembly of the pump unit should be carried out in a

clean and dust free environment. Dust particles under the valves or in the

bearing will lower the pump performance and lead to higher operating

voltages and current.

1. Undo four screws , remove case lid (Fig. 2). Disconnect and remove

battery.

2. Remove two screws marked a (Fig. 2). Remove tube connector from

damper outlet and lift out pump unit. Unsolder motor connections from the

control board.

Valves.

The valves are made from synthetic rubber.

1. Remove valve chest (09-102158C) with diaphragm clamp plate (09-

102157C) by removing four securing screws Z002/16 (Fig. 1).

2. Remove two screws Z002/13 which hold the valve chest to the diaphragm

clamp plate and separate the two parts. Valve assemblies are retained in the

valve chest by the

O ring seals (O/106/1).

3. Note the orientation of the valve assemblies so that they can be correctly

reassembled.

4. Remove the O ring (O/002/1) from the ends of the valve retainers (09-

102160A)

from the ends of the valve retainers (09-102160A). Push the valve retainers

through the valve seat (09-102159A) to remove valve (01-101189A).

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Casella-cel AFC123 Manual do Utilizador Página 7