HG614 Issue 15 © 2017 3
CONTROL HANDLE REASSEMBLY
A) Clean and inspect all parts Replace any suspect,
worn or damaged components
Note: Lightly lubricate the valve cam before assembly
B) Place “O”Ring (17) onto valve cam (14)
Note: The cut out section in the middle of the valve cam
(14) must face the inlet swivel (26)
C) Replace the valve cam (14) into the body (13)
Note the orientation shown on the assembly drawing
Fit the second “O”Ring (17) and washer (18)
D) Slide lever assembly (29) into position and replace
the two Allen screws (27) (Use Loctite or similar sealant)
E) Replace plunger (19)
Note: The end hole in the plunger must face the meter
F) Assemble the seal/valve body (20), and spring (22) and
replace into the gun body
Note: Install the spring, small end first
G) Replace handle sleeve (23)
H) Replace washer (24), o’ring (25) swivel assembly
(26), and screw firmly into place (Use Loctite or similar
sealant)
Note: After assembly ensure the handle latch is operating
correctly
METER DISASSEMBLY
1) Unscrew the swivel assembly (26) two complete
turns to allow easy disassembly and assembly of the
meter and remove boot (1)
2) Remove battery cover screw (3), the battery cover
(5) and batteries (7)
3) Remove the three Phillips screws (9) and the
calibration port screw (16) from the underside of the meter
4) Carefully remove the computer module (2) from the
module housing (8)
Note: The computer module is non repairable and will
need to be replaced if damaged
5) Remove the four Allen screws (15) from the
underside of the meter and remove the module housing
(8)
6) Remove the rotors (11) and the body ‘o’ ring (12)
1) Clean and inspect all parts Replace any suspect, worn
or damaged components
2) Replace rotors (11) ( Refer to Fig 1 )
(Fig 1)
Note: Ensure the rotor with the magnets is assembled with
the magnets facing up and positioned on the correct side
of the meter Both rotors must also be positioned at 90deg
to each other ( Refer Fig 1 )
3) Replace the gun body ‘o’ring (12)
4) Carefully position the module housing (8) on top of the
gun body (13), replace and tighten the four Allen screws
(15)
5) Ensure the handle latch is working correctly
6) Test the oil control gun for correct operation
7) Replace the computer module (2)
8) Replace and tighten the three Phillips head screws (9)
and calibration port screw (16)
9) Replace the two AA Alkaline batteries (7) (use the
directions on the label found inside the battery housing for
correct battery orientation)
10) Replace battery cover assembly (4,5,6) and tighten the
screw (3)
11) Firmly tighten the swivel assembly (26)
12) Replace the boot (1)
13) Test oil control gun for correct operation
TROUBLE SHOOTING GUIDE
TROUBLE CAUSE REMEDY
No fluid passing through a) Blocked strainer a) Clean or replace strainer
the meter b) Dirt particles jamming the rotors b) Dismantle meter assembly and clean
( refer to meter disassembly )
c) Damaged plunger seal c) Replace damaged plunger seal
The meter is not registering fluid output
a) Flat battery a) Replace battery
b) No signal from the magnets b) Check magnets and replace rotors if required
c) Damaged computer module c) Replace computer module
Meter display reads Err 1 Sensor error Press the reset button to reset the computer
(If the error repeats, check the magnets in the rotor)
Meter display reads Err 3 Flow rate to high Adjust the flow rate to 1–30 l/mim ( 0 26-8 US gal/min )
Eliminate air from the system
Meter display reads Err 4 Calibration error Press the reset button to reset the computer
Meter display reads Err 5 Computer error Press the reset button to reset the computer
Note : Alw ays pre ss the reset button to rese t the com pute r
Constant oil leak from the nozzle Damaged plunger seal (20) Replace plunger seal ( check for damage )
Intermittent drip from the nozzle Dirt in the nozzle
Remove the nozzle and blow out any dirt particles, replace if necessary
Oil leak from the lever assembly area Damaged o’rings (17) Replace damaged o’rings
Oil leak from betw een the body casting
Damaged o’ring (12) Replace damaged o’ring
and the computer module casting
Low flow rate Blocked strainer (32) Replace strainer
Oil leaking from the sw ivel inlet Damaged o’ring or sw ivel Replace sw ivel
METER REASSEMBLY
