Anthony Liftgates MTU-GLR Series, Руководство по обслуживанию

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Anthony Liftgates, Inc.
20
MTU-GLR Maintenance
www.anthonyliftgates.com 800-482-0003
7. Troubleshooting Chart
Troubleshooting Chart
Problem Possible Causes Possible Solution
Motor does not run when
control switch is activated.
Cab cut-off switch. Turn switch to ON position.
Dead battery. Make sure battery is fully charged.
Check for loose or corroded battery
connections.
Replace or recharge battery.
Circuit protection (fuse or breaker). Replace fuse.
10 Amp fuse in power unit box. Replace, if fuse is blown. If problem
continues, check for shorts in the
electrical system.
Control box switch. Check fuse. “4.5 Replacing the Fuse” on
page 12.
Motor start solenoid. Check solenoid. “4.6 Checking Motor
Start Solenoid and Power Cut-off
Solenoid” on page 12
Optional power cut-off solenoid. Check solenoid. “4.6 Checking Motor
Start Solenoid and Power Cut-off
Solenoid” on page 12.
Battery cable. Connect motor directly to a spare
battery using the procedure in the
Maintenance section.
Motor. If the motor is determined to be
defective, it should be replaced.
Defective motors are typically caused
by weak batteries (low Voltage), loose
connections, corrosion, or a poor
ground.
If liftgate is installed on a semi trailer make sure the battery wire is 2 gauge or
heavier. Smaller wires can reduce the Voltage, resulting in motor failures.
If the motor does not operate in freezing conditions, make sure the motor housing
does not contain water.
Sagging platform. Normal wear. Add shims to platform. “4.4 Platform
Adjustment” on page 11.
Bushing wear where lift arms connect to
platform.
Replace bushings.
Structural damage. Replace worn parts.
Foaming oil. Air in the hydraulic hose(s). Check oil level in reservoir. “4.1 Monthly
Inspection” on page 10.
Broken or loose fluid return tube. Remove the oil reservoir and make sure
the return tube is below the oil level.
If the tube has turned or fallen out,
reinstall it into the pump housing. Use
a center punch to “stake” the tube into
position.