ASM Zip-Spray-n-Roll 233792, Операция, ремонт и запасные части.

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38 309420
Advanced Troubleshooting
General Problem: Output is Low or Fluctuating (continued)
SPECIFIC PROBLEM CAUSE SOLUTION
Motor brushes are worn.
NOTE: Brushes do not wear at the same rate on
both sides of motor. Check both brushes.
Check length of brushes. Brush length must
be 0.25 in. (6.4 mm) minimum. If brushes
are worn, replace motor using
Motor Kit
245080.
Motor brush springs are broken. If springs are broken, replace motor using
Motor Kit 245080 for Zip–Spray–n–Roll
models or 243236 for Zip–Spray 1700
models.
Motor brushes are binding in brush holders. Clean brush holders, remove carbon dust
with small cleaning brush.
Motor stops before sprayer reaches correct
pressure (stall pressure is too low). Replace Pressure Control knob using
Pressure Control Switch Kit 244266 for
Zip–Spray–n–Roll models or 244267 for
Zip–Spray 1700 models.
Motor armature is shorting. Check for shorts using armature tester
(growler), or perform spin test (see
Motor
Diagnostics on page 41). If shorts are
evident, replace motor using Motor Kit
245080.
Control board is damaged. CAUTION: Do not
perform control board diagnostics until you have
determined that the armature is good. A bad
motor armature can burn out a good control
board.
See Control Board Diagnostics on page
41, and if damaged, replace control board
using
Control Board Kit 245079.
Motor runs and pump cycles,
but pressure does not build up.
Intake valve ball or outlet valve ball is not seating
properly. Remove and clean valves, and check balls
and seats for nicks; replace if necessary.
Strain paint before spraying to remove
particles that could clog pump. See
Pump
Service on page 42.
Pump packings are worn or damaged. Check for leaking around throat packing nut.
Replace pump packings if there are leaks.
See
Pump Service on page 42.
Spray–Prime/Drain valve is leaking. Check Spray–Prime/Drain valve for debris
trapped on seat and for worn parts. Torque to
185 in-lb (21 N
S
m). If parts are worn, replace
valve using Spray–Prime/Drain Valve Kit
235014.