DIGITAL GREASE CONTROL VALVE OWNER’S MANUAL
5 OPERATION
WARNING:
Follow the instructions in
PRESSURE RELIEF PROCEDURE before each
operation.
WARNING:
To reduce the chance of serious bodily injury, NEVER work with pressure
more than the maximum working pressure 8700 PSI.
①
. Grab the trigger (refer to part# 2 shown in Fig. 2) gently, then the control valve starts to work.
②
. Release the trigger, the control valve stops working.
Adjustment of flow rate
①
. Loosen the Adjustable nut (part #3 shown in Fig. 2), the free flow will be increased.
②
. Tighten the Adjustable nut (part #3 shown in Fig. 2), the free flow will be decreased until there
is no output.
6. BATTERY REPLACEMENT
If Voltage is below 2.6V, low-power alarm device will be activated and twinkle shows in Zone
②
.
When the LCD panel displays nothing or twinkle shows in Zone
②
, the battery should be replaced.
Follow the steps below to replace new batteries.
①
. Open the battery cover with a flat screwdriver.
②
. Remove the old two batteries. Discard the batteries in accordance with local laws and ordinances.
③
. Insert two AA batteries into the battery compartment. Install the batteries according to the
direction of polarity “+” & “-” indicated and insert the end of anode “+” first.
④
. Place back the battery cover.
7. DISASSEMBLING/ ASSEMBLING
(1) Disassembling
• Disassembling of grease outlet
①
. Remove the grease coupler (part# 3) from the control valve.
②
. Remove the Rigid tube (part# 4).
③
. Discharge the Outlet valve body (part# 5).
• Disassembling of trigger
①
. Remove the Adjust knob (part# 19).
②
. Remove the hex nut (part# 20).
③
. Remove the two hex bolts (part# 27).
④
. Remove the trigger (part# 17) and tapered spring (part# 18).
• Disassembling of circuit board
①
. Remove the 4 pieces of hex bolt (part# 27).
②
. Remove the Top cover 2 and Lens (part# 8).
③
. Remove the three screws (part# 12) from the board
WARNING:
Take care and do not break the wires on the circuit board.
(2) Assembling
Do the opposite steps of the disassembling to re-assemble the control valve. Test the flow rate
before using it.
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PROBLEM
Grease leakage from trigger
Grease leakage from bottom
Grease leakage from the upper
Trigger fails
No displaying
Precision doesn’t reach up
to +/-2%
Flow rate reduced or no flow
Normal flow rate but no
measurement
Grease keep dispensing
after releasing the trigger
Damage of shaft (part# 22) or
steel ball (part# 30)
Loose connection of bottom
Sealing ring (part# 25) is worn
Trigger is loose
Battery is out of charge
Precision is not properly
adjusted
Air mixed into the grease
Grease clotted
Improper installation of oval
gears (part# 6)
Circuit board fails
Trigger is out of place
Steel ball is out of place
Replace shaft or steel ball
Re-tighten it
Replace the sealing ring
Tighten adjust knob (part# 19) to
squeeze the trigger
Replace a new trigger
Replace the battery
Refer to
CALIBRATION PROCEDURE
above to re-set the correction factor
Adjust the working position of pump
Refer to
Cleaning the chamber of
control valve
below to clean the gear
and chamber
Re-install
Replace the circuit board
Adjust the trigger
Re-install it
POSSIBLE CAUSE
CORRECTIVE ACTION
DIGITAL GREASE CONTROL VALVE OWNER’S MANUAL
TROUBLE SHOOTING
WARNING:
Relieve pressure before you check or service any system equipment.
MAINTAINANCE
All the parts should be checked as per the following steps to be disassembled. Never use products
that are worn or damaged.
See the exploded parts list chart to check every corresponding spare parts numbers.
Cleaning the chamber of control valve
When the control valve been shelved for a longer period of time or the grease output is very small,
the body chamber of control valve should be cleaned.
①
. Use an inner hexagon wrench to unfasten the 8 inner
hexagon bolts (part# 23) from the valve body (part# 1),
see Fig. 4.
②
. Remove the front cover (part# 7) and the seal mat
(part# 25).
③
. Take out of the two oval gears (part# 6).
④
. Clean the two oval gears (part# 6) with an approved
solvent, like kerosene, and ensure the gears without
being damaged.
⑤
. Clean the gear chamber with an approved solvent, like kerosene, and make sure the kerosene
not splash onto the crystal display area.
⑥
. Carefully place the seal mat (part# 25) back to the front cover (part# 7).
⑦
. Place the two ovals gears (part# 6) back to the two cylinders. Rotate a gear to ensure the gear
is move smoothly.
⑧
. Carefully place it back the control valve body, then tighten with the 8pcs of hexagon screws
(part# 23).
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Fig. 4
