Draper Heavy Duty Lever Grease Gun - 500cc

The safe working pressure for this Draper Heavy Duty Lever Grease Gun is 62 Mpa, which is equivalent to approximately 9000 psi.

This gun is designed for stiff, medium, or heavy greases, making it suitable for most common industrial, automotive, and agricultural lubrication needs.

Unscrew the barrel, pull the plunger rod completely out, and use the rod to suck grease into the barrel. Ensure the barrel is clean before filling.

The air release valve allows you to purge any trapped air from the grease gun's barrel and delivery system. This ensures consistent grease flow and prevents pressure loss.

Yes, the delivery tube is typically replaceable, and the connection thread is a standard 1/8" BSPT, allowing for compatibility with other standard fittings.

It is recommended to wipe down the exterior after each use. Periodically clean the inside of the barrel, especially when changing grease types or if the gun has been stored for an extended period.

Ensure the plunger is fully engaged. Check if the gun is loaded with grease. If using a cartridge, ensure the follower is removed. If air is suspected, operate the air release valve. Verify the delivery tube and hydraulic connector are not blocked.

The plunger seal may be worn or damaged. Inspect the seal and replace if necessary. Ensure the barrel is clean and free from abrasive material.

The grease may be too stiff for the ambient temperature, or the gun may require priming. Try warming the grease. Ensure the air release valve is functioning and purge any trapped air. Check for blockages in the delivery line.

Operate the air release valve located on the barrel head until grease begins to flow steadily. You may need to cycle the lever a few times after purging air.