10-Troubleshooting - MAGUIRE NOVATEC VL Series Instruction Manual

10- TROUBLESHOOTING
Most loader problems are a result of a dirty filter, air leaks or improper adjustments. These
items should be checked before assuming equipment failure.
Problem
Motor will not run
Inadequate or no vacuum
Inadequate or no material flow
Motor runs but proportioning solenoid not operating
CHECK
A. Power Supply
supply
B. Stop/Start Switch
C. Vacuum motor
D. Filter
E. Air Ducts
F. Leaks in system
G. Blowback air
pressure incorrect
H. Limit switch
I. Load Time
J. Pulse rate
K. Dump time
L. Pulse solenoid
VL-VLP IM 19 JUNE 2017
CONDITIONS
No voltage or voltage incorrect
No voltage through switch
No voltage at motor
Filter dirty
Obstructed
Air leaking into system
Low pressure
No voltage through switch
Chamber not filling sufficiently
Chamber over-filling
Insufficient to clean filter
Insufficient to allow complete
emptying of chamber
Correct voltage at solenoid
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Investigate
A, B, C, H, and L
D, E, F, G, J
D, E, F, and G, I, K
L
SOLUTION
Check incoming power
voltage at outlet
Replace switch
See A,B, & L
Replace filter
(Also see G & J)
Remove obstruction
Replace gaskets & repair
leaks as necessary
Increase pressure
(not to exceed 125 psi)
Replace switch
Increase load time
Decrease load time
Increase rate
Increase time
Replace solenoid
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