OPERATION
61
8210D 330210 (1--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
Vacuum fan seal damaged
Replace vacuum seal
Vacuum fan failure
Call TENNANT service personnel
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
Free drive mechanism of debris
Main brush drive failure
Call TENNANT service personnel
Side brush drive failure
Call TENNANT service personnel
Hopper full
Empty hopper
Hopper lip skirts worn or damaged Replace lip skirts
Wrong sweeping brush
Call TENNANT representative
Trailing water -- poor or no
t
i k
Worn rear squeegee blades.
Rotate or replace blades
water pickup.
Rear squeegee out of adjustment
Adjust rear squeegee
Worn side squeegee blades.
Replace side squeegee blades
Side squeegees out of adjustment Adjust side squeegees
Recovery tank cover not seated
Reseat tank cover
Recovery tank cover seal worn
Replace seal
Too much solution flow to floor
Reduce solution flow to floor
Vacuum hose clogged
Flush vacuum hoses
Rear squeegee tube clogged
Flush squeegee tube
Recovery tank full
Drain recovery tank
Check ES pump and filter
Float stuck shutting off vacuum
Clean float
Debris caught on rear squeegee
Remove debris
Foam filling recovery tank
Empty recovery tank; use less or
change detergent
Vacuum hose to rear squeegee
disconnected
Reconnect
Vacuum--fan--to--recovery--tank--
hose damaged
Replace hose
Too much solution flow for floor
conditions / machine speed
Adjust manual flow control valve
to reduce total solution flow