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]- Items contained in
on it’s
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material head (ref# 23) to the hydraulic head (ref# |
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3.Remove diaphragm and examine large steel plate ( front ) of the diaphragm
assembly. Replace entire assembly if sharp edges are evident.
4.Dismantle old diaphragm.
5.Continue at step 6, of assembly, if replacing entire diaphragm, or step 1 if installing a repair kit.
Assembly
1.Slide large steel plate onto the new screw provided. Screw should fit into the
2.THREAD one of the small nylon washers onto the screw, followed by the diaphragm pad and the second small washer. There is no correct side to the pads, but it is important that the pads be threaded on. DO NOT force pads over screw or leakage may occur due to the hole being enlarged.
3.Slide the smaller steel plate onto the screw, being careful that the beveled edge of the plate is against the washer. The diaphragm must flex against the beveled surface. If the sharpe edge is against the diaphragm, it will be cut by the sharp edge.
4.Tighten the jam nut onto the screw. A new nut should be used each time, as they are lock nuts and it is imperative that the nut does not come loose.
5.Fill hydraulic head cavity with genuine H.E.R.O. LVO oil, before the new diaphragm is installed.
6.Place the new or repaired diaphragm assembly back into the hydraulic head, with the large steel plate facing up. Ensure diaphragm is resting within the hydraulic head’s recess.
7.
8.Refill hydraulic oil tank and "PURGE" system following instructions on page 16.
NOTE: The diaphragm will take on a wrinkled or puckered appearance almost immediately, when exposed to operating pressure. DO NOT be concerned by this. A diaphragm requires replacement when hydraulic oil appears in the spray material. Annual replacement is recommended as part of your preventative maintenance.
REPLACEMENT OF INTAKE SEAT (REF # 17)
TOOLS REQUIRED
H.E.R.O. INDUSTRIES | 20 | 1100C & 1100NC OWNERS MANUAL |