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H.E.R.O. INDUSTRIES 1100C & 1100NC OWNERS MANUAL
17
recommendations).
2. Intake ball (ref# 18) worn or jammed opened/closed. (remove intake endcap (ref# 16) and cage (ref#
19). Inspect intake ball, (ref# 18), to ensure it is free, round, and has no nicks or cuts. Inspect for foreign
material jamming ball. Replace parts as needed).
3. Intake seat loose/bypassing. ( run unit under pressure for about ten (10) minutes. Feel endcap for signs
of heat. Any signs of heat indicate a fault with the seal between the seat and endcap block. Remove
intake endcap, (ref# 16) and ball cage, (ref# 19). Remove elbow (ref# 13) from endcap. Use a socket to
tap or press the seat free of the endcap. Inspect block for any sign of material bypass between intake
seat and endcap cavity. See page 21 for seat replacement details.
4. Outgo valve ball (ref# 36) worn or jammed. (remove outgo valve, (ref# 32). Invert valve and unthread
outgo valve upper ,(ref# 39), from outgo lower, (ref# 33). Remove crush washer, (ref# 34), outgo seat,
(ref# 35), outgo ball, (ref# 36), outgo cage, (ref# 37), outgo spring, (ref# 38), from outgo upper tunnel.
Inspect outgo ball to ensure that it is round and free of nicks or cuts. Inspect for foreign material
jamming ball. Inspect ball and cage for wear. Replace parts as needed).
5. Outgo valve (ref# 32) incorrectly assembled. (disassemble and reassemble outgo valve, closely
following detailed instructions on page 22).
TOTAL LOSS OF PRESSURE, DIAPHRAGM HAS NO MOVEMENT OR MOVEMENT CAN BE
STOPPED. (SEE "DIAPHRAGM TEST")
1. Hydraulic intake valve (ref# 59) defective. (remove hydraulic feed line, (ref# 60), from hydraulic
intake valve. Plug hydraulic feed line so hydraulic fluid does not drain. Remove hydraulic intake valve
from elbow, (ref# 147). Check hydraulic intake valve to ensure that it flows in one way only, into the
cylinder. Replace if necessary. NOTE; Item cannot be repaired ).
2. Air lock created on hydraulic side of pump. (air entering hydraulic side due to loose hydraulic feed
line fittings, (ref# 60), punctured hydraulic feed line, poor seal at hydraulic intake valve, (ref# 59), or
elbow, (ref# 147). Tighten hydraulic feed line, test for leaks, or apply Teflon tape or pipe sealant on
fittings. Purge air as per detailed instructions below).
3. Pressure control valve ball (ref# 84) worn out/jammed. (remove hydraulic return line, (ref# 69), from
pressure control valve fitting, (ref# 78). Remove pressure control valve, (ref# 70), from elbow, (ref#
59). Disassemble pressure control valve, by removing valve seat, (ref# 83), from body, (ref# 79). Inspect
for and remove foreign material. Inspect ball for wear. Install pressure control repair kit, (ref# 85), if
necessary).
4. Piston rod (ref# 90) disconnected from piston (ref# 88). (reconnect piston rod following detailed
instructions on page 23-24).
SPRAYER DOES NOT PRIME WITH PAINT
1. Heavy bodied paint, air lock. (refer to " Setting Up To Spray" and follow instructions.
TROUBLESHOOTING
SITUATION
POSSIBLE CAUSE (REMEDY)
PUDDLE OF OIL APPEARING UNDER SPRAYER DURING OPERATION
1. Hydraulic fitting loose/cracked or hydraulic lines are punctured. (examine all hydraulic lines and
fittings for cracks, breaks or looseness. Replace or tighten as required).
2. Piston seals (ref# 87) worn. (remove and replace piston seals, following closely the detailed