Northern Industrial Tools M1578112A - Manual (Page 14)

Operation Instructions
14
Spray Gun Safety Lock
When not spraying, use the spray gun safety lock to prevent accidental high pressure discharge.
* Note: Depending on model, gun may appear differently.
Attaching the Lance
Tighten spin-on coupler hand tight.
Note: The o-rings make the seal so there is no need to tighten with a wrench.
spray gun
spray gun safety lock
lance
spin-on coupler