IWAKI PUMPS APN-450, Инструкция по эксплуатации

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Maintenance
■ Corrosion resistant (stainless) type
<APN-450NAT/NATX, APN-P/-S450NAT/NATX>
Go through the following steps to take apart or put together the pump. Do not dismantle the pump beyond
the extent of the instructions.
Diaphragm & seat dismantlement
1. Lay the pump on its side with the pump head
upwards. See the left picture.
2. Remove 4 hexagon socket head bolts with a
5mm hexagon wrench and detach the pump
head.
3. Remove 4 screws with a 3mm hexagon wrench
and take out a retainer plate, seat and dia-
phragm.
4. Place a new diaphragm onto the connecting rod.
5. Place a new seat and retainer plate onto the dia-
phragm. Apply locking agent (LOCKTITE No.222)
or equivalent) to the thread of the screws and
tighten them with a 3mm hexagon wrench by
3.4N•m to fasten these parts onto the connecting
rod.
6. Press down the diaphragm until it bottoms out
and then mount the pump head with 4 hexagon
socket head bolts.
Tighten hexagon socket head bolts in diagonal
order until they bottom out.
Hexagon socket head bolt
Pump head
Screw
Retainer plate
Seat
Diaphragm
Connecting rod
Case