Troubleshooting – Poweramp HNL SERIES HYDRAULIC User Manual
Page 34
32
Manual No. 4111-0029
November 2009
May 2012
Symptom
Solution
The unit raises slowly, the motor is
extremely noisy, and the hydraulic hoses
are vibrating.
Check the fluid level in power unit reservoir, if low, add fluid and
operate leveler several times to remove any air from the system.
The motor runs but the unit will not raise.
1. Incorrect wire capacitor or faulty capacitor
2. Coil should be energized to lower leveler and de-energized to
raise leveler.
Unit raises very slow.
Check for voltage drop due to wrong size wiring. Check fluid
level.
Unit will not raise to full dock height.
1. Check fluid level in reservoir. Fluid level should be three
inches below the top of the reservoir with all cylinders fully
extended.
2. Main springs may need adjustment.
TROUBLESHOOTING