MAINTENANCE
3-17
235E MM165 (3--93)
PROPELLING SYSTEM TROUBLESHOOTING
Problem
Cause
Verification/Remedy
No propelling
Low battery charge
Charge batteries
No propelling
Loose or broken wires
Locate and fix or replace wires
Controller overheated (for
machines below serial number
002311)
Thermal switch tripped -- allow
controller time to cool down
Blown fuse (80A)
Replace fuse
Seat shroud switch failure
Replace seat shroud switch
Key-operated on-off switch failure
Replace on-off switch
Motor or gearbox failure
Check motor and gearbox for
binding. Check motor for failure
M3 contactor failure
Replace M3 contactor
Vehicle accelerates without
pedal movement
Directional pedal not at “neutral”
position
See
PROPELLING CIRCUIT
:
TO
ADJUST “NEUTRAL”POSITION
Full speed only
Damaged wires, short circuits,
crossed wires
Check visually for damage Check
controller for dirt or metal chips
causing short circuit
Machine will not reach full
speed
Batteries run down
Charge batteries
Vibration or roughness when
braking
M1 and M2 contactor failure
Replace M1 and M2 contactor
Weak and uneven braking
forward and reverse
M1 and M2 contactor failure
Replace M1 and M2 contactor
Very strong braking
Armature and field wires
interchanged
Correct wire installation
Contactors close, little or no
power. High pitched whistle
Loose connections
Locate and fix or replace wires
Contactors close, little or no
power. High pitched whistle
Short circuit in motor
Test for short circuit. Repair or
replace
Armature and field wires
interchanged
Correct wire installation
Contactors close, machine
moves to full speed but lacks
power
Loose connections
Locate and fix or replace wires
Forward speed only
Contactor failure
Replace contactor
Reverse speed only
Contactor failure
Replace contactor
Sporadic operation
Low battery charge
Charge batteries
Sporadic operation
Controller overheated (for
machines below serial number
002311)
Thermal switch tripped -- allow
controller time to cool down
Water in circuit
Disconnect batteries and dry
affected areas
NOTE: For more detailed troubleshooting information for qualified personnel, order the 235E Propelling
System Troubleshooting Manual, TENNANT part number MM182.
Содержание 235E
Страница 1: ...235E MM165 Operator Manual ...
Страница 6: ...ABOUT THIS MANUAL 235E MM165 3 91 d ...
Страница 14: ...SPECIFICATIONS 235E MM165 3 91 1 2 ...
Страница 18: ...OPERATION 235E MM165 3 91 2 2 ...
Страница 34: ...MAINTENANCE 235E MM165 3 91 3 2 ...
Страница 42: ...MAINTENANCE 235E MM165 3 94 3 10 03380 HYDRAULIC SCHEMATIC ...
Страница 51: ...MAINTENANCE 3 19 235E MM165 3 93 03382 ELECTRICAL SCHEMATIC For machine below serial number 002205 ...
Страница 52: ...MAINTENANCE 235E MM165 3 93 3 20 03382 ELECTRICAL SCHEMATIC For machines from serial number 002205 to 002310 ...
Страница 53: ...MAINTENANCE 3 21 235E MM165 3 94 03382 ELECTRICAL SCHEMATIC For machines serial number 002311 and above ...
Страница 70: ...MAINTENANCE 235E MM165 3 94 3 38 ...
Страница 72: ...APPENDIX 235E MM165 3 91 4 2 ...