Neptune_GB_Ver.2.0_10/03
7.
Adjustment / Test
Control Safety Block
Adjusting microswitch (3):
Adjusting minimum operating pressure:
- Switch on machine and open trigger gun. When
operating pressure is reached close trigger gun
(machine does not shut off)
- After loosening lock nut slowly turn adjustment screw
(5) to right until machine shuts off. Then turn ½ - ¾
additional turns in the same direction.
- Lock adjustment screw (5) with nut and sealing paint
- Turn adjustment screw (1) to left until minimum
operating pressure is reached (see Table 7.1). If
necessary, loosen lock nut (6) and turn union nut (8)
counterclockwise.
- Then turn union nut (8) to right until it contacts
adjustment screw (1)
- Close gun and check function of microswitch (3)
- Lock union nut (8) with lock nut (6)
- Lock lock nuts (6 and 9) and seal with sealing paint
- Fit adjustment knob and secure with cap.
- Also lock cap with sealing paint
- Turn Control Safety Block to max. pressure
Check: After closing gun the lever of the
microswitch does not touch the housing!
B4
4
3
7
6
2
9
8
1
5
B2
Work after adjustments:
- Remove test bolt and mount safety valve (4). Check function at high pressure.
- Remove jumper on X10 and close electrical box.
- Set dip switch 1 back to 0 (only if temperature indication has to be set to °F)
Note: Flow sensor needs to be adjusted with the burner in operation (see burner adjustment
procedure)!
49.