MAINTENANCE
Tennant T500 (01-2017)
41
2. Cylindrical brushes - Rotate brushes from front to
rear (Figure 112). Replace brushes when they no
longer clean effectively.
FIG. 112
3. Cylindrical scrub head - Remove debris buildup
from underside of scrub head, including the idler
plates and drive hubs (Figure 113).
FIG. 113
4. Inspect and clean the seal on the recovery tank lid
(Figure 114). Replace seal if damaged.
FIG. 114
AFTER EVERY 100 HOURS OF USE
If machine is equipped with the optional battery
watering system, check hoses for leaks, loose hose
connections and for damage or wear (Figure 115).
Replace system if damaged.
FOR SAFETY: When servicing batteries, wear
personal protection equipment as needed. Avoid
contact with battery acid.
FIG. 115
ELECTRIC MOTORS
Replace motor carbon brushes as indicated. Contact
trained personnel for carbon brush replacement.
Carbon Brush Replacement
Hours
Vacuum motor
750
Propel motor
1250
Disk brush motors
1250
Cylindrical brush motors
1250
Orbital brush motor
1250
BELTS (Cylindrical Brush Model)
FOR SAFETY: Before leaving or servicing machine,
stop on level surface, turn off machine, remove key
and set parking brake if equipped.
Replace belts every 1250 hours. Contact trained
personnel for belt replacement (Figure 116).
FIG. 116
