3094126
Troubleshooting
PROBLEM CAUSE SOLUTION
Clutchis worn, damaged, or incorrectly positioned Replaceclutch. Manual 309890.
Pinionassembly is worn or damaged Repairor replace pinion assembly. Manual
309890.
Pumpoutput is low. Strainer(89) is clogged Cleanstrainer. Sprayer 233716 strainer is for
usein paint only.
Pistonball (206) is not seating Servicepiston ball. Manual 309277.
Pistonpackings are worn or damaged Replacepackings. Manual 309277.
O-ring(227) in displacement pump is worn or dam-
aged
Replaceo-ring. Manual 309277.
Intakevalve ball is not seating properly Cleanintake valve. Manual 309277.
Intakevalve ball is packed with material Cleanintake valve. Manual 309277. Do not
leave233716 sprayer under pressure for more
than5 minutes when spraying texture and not
activelyspraying.
Enginespeed is too low Increasethrottlesetting. Manual 309408.
Clutchis worn or damaged Replaceclutch. Manual 309890.
Pressuresetting is too low Increase pressure. Manual 309408.
Fluidfilter (318), tip filter or tipis clogged or dirty Cleanfilter. Manual 309408 or 309091.
Largepressure drop in hose with heavy
materials
Uselarger diameter hose and/or reduce overall
lengthof hose. Use of more than 100 ft of 1/4
in.hose significantly reduces performance of
sprayer.Use 3/8 in. hose for optimumperfor-
mance(50 ft minimum).
Excessivepaint leakage into
throatpacking nut
Throatpacking nut is loose Removethroat packing nut spacer. Tighten
throatpacking nut just enough to stop leakage.
Throatpackings are worn or damaged Replacepackings. Manual 309277.
Displacementrod is worn or damaged Replacerod. Manual 309277.
Fluidis spitting from gun Air in pump or hose Checkand tighten all fluid connections. Re--
primepump. Manual 309408.
Tipis partially clogged Cleartip. Manual 309091.
Fluidsupply is low or empty Refillfluid supply. Prime pump. Manual
309408.Check fluid supply often to prevent
running pump dry.
Pump is difficult to prime Air in pump or hose Checkand tighten all fluid connections.
Reduceengine speed and cycle pump as
slowlyas possible during priming.
Intake valve is leaking Clean intake valve. Be sure ball seat isnot
nickedor worn and that ball seats well. Reas-
semblevalve.
Pumppackings are worn Replacepump packings. Manual 309277.
Paintis too thick Thinthe paint according to the supplier’s
recommendations