VEVOR A03-M - Troubleshooting

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TROUBLESHOOTING
Problem
Possible Cause
Possible Solution
The filling nozzle is
leaking.
The assembly part is loose.
Clean the inner o-ring
and reassemble it.
The O-ring of the valve core is
damaged.
Replace the o-ring
There are sundries sticking to
the o-ring.
Clean the O-ring
The product is noisy
in use.
Use multiple times or without
lubricating oil.
Open the rear cover
and add lubricating oil
The discharge
quantity is not
accurate.
Debris between cone cover and
piston sticks to the sealing ring,
Causing material back flow and
affecting accuracy
Open and clean
Piston ring over wears.
Replace the piston ring
Paste product viscosity is too
large, poor liquidity
Slow down the lifting
motion of the handle