Air powered grease gun

[ed thibodeau]

I recently got a air powered grease gun and I need to know what pressure it should be operated at. It probably is a harbor freight unit.
Thanks:

 

[flatheadman]

I think they are rated for 90-120 psi.

 

[CarlG]

I have my compressor set at 95#, my Lincoln grease gun works fine with that.

 

[Mitch//pa]

mine works fine at 120 psi

 

[Will N]

I ran mine at about 90#, and it blew one of the pressed-in alemite fittings right out of its hole! No problem- tapped it back in, and turned the pressure down to 40#.