Harbor Freight Tools 91772 - Manual (Page 12)

SKU 91772 For technical questions, please call 1-800-444-3353. Page 12
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.
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.
ASSEMBLY AND OPERATING INSTRUCTIONS (continued)
Problem
The Paint Drips on
object to be painted
Weak or irregular spray
No Paint Coverage
-product too diluted - add undiluted product
- spray adjustment - reduce paint flow
-slow sprayer movement - faster sprayer movement
- clogged gun - let go of Trigger when reversing
- distance problem - increase distance between gun and
object
Cause Solution
-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
-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)
Troubleshooting
FIGURE 4
Switch (31)