Section 4 - Troubleshooting
4-4
VEHICLE DRIVES SLOWLY
▪
Check for all physical/visual signs of damage, low tire
pressure or jammed linkages.
▪
Check for brake drag by turning vehicle power off,
releasing parking brake, and attempting to roll vehicle a
short distance.
▪
Plug in the Handheld Calibrator and check 5.01, 6.01
and
7.01 for appropriate values (maximum speed
settings).
While driving check speed incrementally at
14.01 on the
handset. Also check the encoder pull up
resistor and
encoder connector.
▪
Perform step 2 in
Troubleshooting with Handheld
Calibrator
.
▪
Check for weak, discharged or damaged batteries, or
poor connections.
VEHICLE DRIVES IN FORWARD OR REVERSE
ONLY
▪
Perform step 4 in
Troubleshooting with Handheld
Calibrator
.
Figure 4-8
VEHICLE DRIVES BUT OPERATION IS JERKY OR
INCONSISTENT
▪
Check speed switch carefully with analog ohmmeter for
gradual,
smooth resistance sweep.
▪
Check motor brushes. Replace if bad or worn (Figure 4-
8).
Call Columbia Technical Support if problem persists. Have the following
information ready:
- VIN
- Vehicle Checksum (19.15)
-
Direction of travel where the operation is “jerky”
- Speeds at which vehicle jerks.
VEHICLE POWER CUTS OUT
The fault for a vehicle that exhibits a cut out symptom can only be
diagnosed while the vehicle is in a fault condition.
New
brushes are square cut
.
Brushes will “seat
-
in” with a
slight curve
Содержание Expediter EX21-24A
Страница 1: ...Columbia ParCar Corp SERVICE MANUAL Expediter EX21 24S EX21 24A EX21 48A 2013...
Страница 8: ...Service Manual Section 2 General Information...
Страница 13: ...Section 2 General Information...
Страница 27: ...Section 4 Troubleshooting Figure 4 7...
Страница 35: ...Section 5 Accelerator Brake System Figure 5 1 Figure 5 2...
Страница 44: ...Section 6 Front wheels Fork Steering 6 Install steering column guard...
Страница 45: ...Section 6 Front wheels Fork Steering Figure 6 5...
Страница 46: ...Section 6 Front wheels Fork Steering 6 4...
Страница 50: ...Section 6 Front wheels Fork Steering Service Manual Section 7 Rear Wheels Rear Suspension Axle Assembly...
Страница 51: ...Section 6 Front wheels Fork Steering 2013 EX 21 Service Manual...
Страница 56: ...Section 7 Rear Wheels Rear Suspension Axle Assembly Figure 7 4...
Страница 57: ...Section 7 Rear Wheels Rear Suspension Axle Assembly Figure 7 6...
Страница 60: ...Section 7 Rear Wheels Rear Suspension Axle Assembly...
Страница 67: ...Section 7 Rear Wheels Rear Suspension Axle Assembly...
Страница 70: ......
Страница 72: ...Figure 8 6 8 2...
Страница 83: ...Section 9 Battery and Battery Charger...
Страница 84: ...Service Manual Section 10 Traction Drive System TRACTION MOTOR MAINTENANCE...
Страница 89: ...Section 10 Traction Drive System Figure 10 10...
Страница 90: ...Section 10 Traction Drive System...