OPERATION
34
S20 Gas/LP 9006719 (1
−
2010)
MACHINE TROUBLESHOOTING
Problem
Cause
Remedy
Excessive dusting
Hopper door partially or
completely closed
Open hopper door
Vacuum fan off
Move vacuum and filter shaker
lever to
Vacuum fan on
position
Hopper dust filter clogged
Shake and/or clean or replace
dust filter
Brush skirts and dust seals worn,
damaged, out of adjustment
Replace or adjust brush skirts or
dust seals
Cyclones dirty / clogged
Clear blockage from cyclones
Vacuum hose damaged
Replace vacuum hose
Vacuum fan failure
Ensure Thermo Sentry wires are
connected
Contact TENNANT service per-
sonnel
Thermo
−
Sentry tripped
Allow Thermo
−
Sentry to cool
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
Remove debris from the drive
mechanism.
Hopper door partially or
completely closed
Open hopper door
Hopper full
Empty hopper
Recirculation flap damaged
Replace flap
Wrong sweeping brush
Contact TENNANT representative
for recommendations
Hopper lip skirts worn or damaged Replace lip skirts
Side brush drive failure
Contact TENNANT service
personnel
Main brush drive failure
Contact TENNANT service
personnel