Harbor Freight Tools 91772 operating instructions Troubleshooting

ASSEMBLY AND OPERATING INSTRUCTIONS (continued)

5.Secure the Spray Gun in the Gun Tray (41). If the Gun Tray (41) is not attached to the Motor Unit, attach it as shown in FIGURE 3 on page 11.

6.To adjust the type of spray required, loosen the Lock Ring (17) and rotate the Fluid Tip (16) for a horizontal, vertical, or round spray. Practice spraying on scrap mate- rial to get the feel of the adjustments. When finished, tighten the Lock Ring (17). Note: Horizontal and vertical sprays are recommended for larger surfaces, and round sprays are used for small objects or difficult to reach areas.

7.	Plug in the unit.	Switch (31)	FIGURE 4
8.	Place the Strap (28) over you shoulder.
9.	Turn on the Switch (31). See FIGURE 4.
10.	Pointing the Spray Gun at scrap material for prac-
	tice, gently squeeze the Trigger (25) to begin
	spraying.
11.	To adjust the paint flow, turn the Fluid Needle

Screw (1) while pulling the Trigger (25), until the correct flow is obtained.

Note: Never cover the Vent (18), and never hold the Spray Gun upside down. Covering the vent will halt paint flow, and holding the Spray Gun upside down will spill out paint.

12.The Spray Gun should be moved with a regular motion, keeping a consistent dis- tance from the object. The Spray Gun must always be parallel to the surface of the

object being painted. Let go of the Trigger (25) after each pass.

Note: Avoid circular motions as they may damage the finish of the surface.

13.When you are finished, release the Trigger (25) and turn off the Switch (31).

Warning! Air may still be in the Spiral Air Hose (46) after turning off the unit. Always point the unit at scrap material or into a bucket and fire the unit after turning it off.

Troubleshooting

Problem	Cause	Solution
The Paint Drips on	-product too diluted	- add undiluted product
	- spray adjustment	- reduce paint flow
object to be painted
	-slow sprayer movement	- faster sprayer movement
	- clogged gun	- let go of Trigger when reversing
	- distance problem	- increase distance between gun and
			object
Weak or irregular spray	-product too diluted	- add undiluted product
	- spray adjustment	- increase paint flow
	-fast movement	- move slower
	- gun clogged	- clean gun
	- gun distance	- increase distance between
			gun and object
No Paint Coverage	-product not diluted enough	- add thinner
	- paint too thick	- check viscosity and adjust
	- gun clogged	-	clean gun
	- hose broken	-	replace hose
	- Filter (30) clogged	-	replace filter
	- Grainy paint	-	filter paint through cheesecloth
	- Cup Cover (19) not closed	- tightly close Cup Cover (19)

SKU 91772 For technical questions, please call 1-800-444-3353. Page 12