OPERATION
57
6550D 330330 (5--98)
MACHINE TROUBLESHOOTING
Problem
Cause
Remedy
Excessive dusting
Brush skirts and dust seals worn,
damaged, out of adjustment
Replace or adjust brush skirts or
dust seals
Hopper dust filter clogged
Shake and/or clean or replace
dust filter
Hopper dust filter not shaking
clean
Connect shaker solenoid spring
clean
Install filter shaker plate correctly
Insert shaker solenoid pin into the
hole of filter element comb
Engine operating at (Fast 2)
speed
Operate engine at (Fast 1) speed
Vacuum hose damaged
Replace vacuum hose
Vacuum fan failure
Contact TENNANT service
personnel
Hopper door partially or
completely closed
Open the hopper door
Thermo Sentry
t
tripped
Reset Thermo Sentry
t
Poor sweeping performance
Brush bristles worn
Replace brushes
Main and side brushes not
adjusted properly
Adjust main and side brushes
Debris caught in main brush drive
mechanism
Free drive mechanism of debris
Main brush drive failure
Contact TENNANT service
personnel
Side brush drive failure
Contact TENNANT service
personnel
Hopper full
Empty hopper
Hopper lip skirts worn or damaged Replace lip skirts
Hopper door partially or
completely closed
Open the hopper door
Wrong sweeping brush
Contact TENNANT representative
for recommendations
Main brush in
Down
position
Put main brush in
Float
position