Graco GM 5000 Instructions-Parts List

17
308-327
PROBLEM CAUSE SOLUTION
Displacement pump
output low on upstroke
Pump inlet screen clogged Clean.
output low on upstroke
Piston ball check not seating Service piston ball check. See page 31.
Piston packings worn or damaged Replace packings. See page 31.
Sleeve gasket in displacement pump is
damaged
Replace. See page 31.
Displacement pump
output low on down -
Pump inlet screen clogged Clean.
output low on down -
stroke or both strokes
Piston packings worn or damaged Replace packings. See page 31.
Intake valve ball check not seating properly Clean and service. See page 31.
Engine RPM too low Increase throttle setting. See Step 1, page 13.
V–belt slipping Replace V–belt.
Clutch worn or damaged Replace. See page 21.
Paint leaks into wet-cup Loose wet-cup T ighten just enough to stop leakage.
Throat packings worn or damaged Replace packings. See page 31.
Displacement rod worn or damaged Replace rod. See page 31.
Low fluid delivery Pump inlet screen clogged. Clean.
Pressure setting too low Increase pressure. See Step 1, page 13.
Engine RPM too low Increase throttle setting. See Step 1, page 13.
Dirty outlet filter , tip filter or tip Clean.
Large pressure drop in hose Use larger diameter hose.
Spitting from gun Air in fluid pump or hose Check for loose connections at pump intake and
tighten. Then prime the pump. See Startup , page
12.
T ip partially clogged Clear.
Fluid supply is low or empty Refill and prime the pump. See Startup , page 12.
Check fluid supply often to prevent running the
pump dry .
Pump is dif ficult to prime Air leak Check all hose connections and tighten as
needed.
Reduce RPM and cycle pump as slowly as possi-
ble during priming.
Intake valve is leaking Shut of f pump and relieve pressure. Disassemble
and clean intake valve. Be sure ball seat is not
nicked or worn and that the ball seats well. Reas -
semble.
Worn packings Repack the pump. See page 31.
Fluid is too thick Thin fluid according to supplier ’ s recommenda -
tions.

Graco GM 5000 Specifications

General

Brand	Graco
Model	GM 5000
Category	Paint Sprayer
Language	English