6 - Maintenance
109
μ
ATTENTION! Before tightening the 4 bolts for the head (2), the
diaphragm must be positioned between centre and top to
ensure correct sealing between diaphragm pump housing and
diaphragm cover. Turn the crank shaft if necessary.
Lubrication After Assembly
After disassembling the pump for diaphragm renewal, etc., the pump
MUST be lubricated with 200 g grease into each lubrication point.
HARDI pump grease cartridge (400g): HARDI item no. 28164600
Overhaul Kit
Pump model: 364.
Diaphragm pump overhaul kit (valves, seals, diaphragms etc.) can be
ordered. Detect the pump model - the overhaul kit can be ordered by
your local dealer.
Model 364: HARDI item no. 75585900.
Cone Check/Renewal for the Pressure Regulation Valve
If it becomes difficult to build up sufficient pressure or if pressure
fluctuations occur, it may be necessary to renew cone and cylinder.
1. Remove 4 screws (A) and remove the housing.
2. Remove 4 screws (B).
3. Replace cylinder (C) and O-ring (D).
4. Loosen the nut (E), remove and replace the cone (F).
5. Reassemble in reverse order.
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