Magnum 261800, Repair And Parts Manual

Page: 21 / 52

Advanced Troubleshooting
312004B 21
Advanced Troubleshooting
See Basic Troubleshooting first, page 17 for problems that are more easily remedied.
General Problem: Motor Does Not Operate
Specific Problem Cause Solution
Power switch is on and sprayer is
plugged in; pump does not cycle. See Basic Troubleshooting ,
page 17.
Basic mechanical problems. Paint is frozen or hardened in
pump. Unplug sprayer from electrical outlet.
If paint is frozen in sprayer :
Do NOT try to start sprayer until completely thawed or
you may damage the motor, control board, and/or
drivetrain.
1. Project Painter 5 and Project Painter 7 - Turn All-
Control to OFF or STORAGE.
SR7, ProX7 or ProX9 - Turn OFF power switch.
2. Place sprayer in warm area for several hours.
3. Plug sprayer in.
4. Project Painter 5 and Project Painter 7 - Turn
AllControl to Prime/Clean Pump
SR7, ProX7 and ProX9 -
a.
Turn on sprayer.
b. Turn prime valve to PRIME position.
If paint hardened in sprayer :
Replace pump packings.
Remove all residue from valves.
Pump Service , page 31.
Motor is damaged. Remove gear and try to rotate motor shaft by hand. See
Motor Diagnostics , page 30. If shaft will not turn,
replace motor using Motor Kit , page 28.
SR7, ProX7 and ProX9 - Yoke is
broken because pump is locked up
due to dried paint or worn
packings Repair or replace using Gear/Yoke Kit , page 28.
Repair pump. See Pump Service , page 31.