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H.E.R.O. INDUSTRIES 1100C & 1100NC OWNERS MANUAL
20
-1/2" Open end wrench (2)
-4-45-3 (accessory item)
-Torque wrench
Removal
1. Tilt unit up on it’s
nose.
2.
Remove the
eight bolts
securing the
material head (ref# 23) to the hydraulic head (ref# 51).
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 counter-sunk hole with
the flat side of hub facing away from the screw head.
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. Re-install the material head with the eight bolts. Torque to 30 ft. lbs.
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
-5/16" Allen wrench
-vise
-torque wrench
-screwdriver
]
]
]
] ] ] - Items
contained in
4-22CRK
Small Steel
Plate
Large Steel
Plate