There are some common faults that may occur during the use of grease guns, which will not only affect the lubrication effect, but also cause damage to the equipment. The following are some common grease gun faults and their brief descriptions:

Sand mixed in the grease causes the grease nozzle to be blocked:
When sand or other impurities are mixed in the grease, it is easy to block the grease nozzle and affect the normal injection of grease.
Preventive measures: Make sure that the added grease is clean, use clean tools to add oil, and dust-proof the container for oil discharge.
Air enters the grease gun and causes oil to not be pressed out:
Novices are prone to mixing air when refueling the grease gun, resulting in the inability to press out oil.
Solution: Use specific refueling techniques, such as keeping the pull rod relatively still, and then use the Pneumatic grease gun suction method of pushing the gun barrel down to refuel, and ensure that there is no gap between the gun barrel and the oil surface.
The motor cannot start (for electric grease guns):
This may be caused by insufficient battery power.
Solution: Charge the battery or replace the battery.
The pressure relief valve leaks oil:
There may be impurities and garbage in the oil circuit, joints or grease nozzle.
Solution: Check and remove impurities and garbage in these parts.
Grease gun cannot discharge oil:
In addition to the above-mentioned air problems, it may also be that there is insufficient grease in the oil storage barrel or too much air in the grease.
Solution: Make sure there is enough grease in the oil storage barrel and try to unscrew the oil valve to exhaust the air in the grease.
Oil leakage:
Mainly caused by poor sealing or aging and wear of sealing materials.
Solution: Check and replace the seals of the grease gun.
Card core:
The grease gun is not flexible to operate, which is common in grease guns that have been used for a long time or have been used many times.
Solution: Replace the card core of the grease gun or perform maintenance work such as cleaning and lubrication.
For these faults, it is very important to regularly maintain and service the grease gun, which can extend its service life and ensure the smooth progress of lubrication work.