Poweramp PR SERIES HYDRAULIC 4.2009 Manuel d'utilisateur télécharger pdf (Page 37)

TROUBLESHOOTING

4111-0001 — Oct.2007

Symptom Possible Cause Solution

Platform does not rise.

Motor does not energize.

Motor overload device

tripped or fuse blown.

Reset overload relay (three-phase) or replace

fuse(s) (single-phase). Determine cause of overload.

NOTE: When replacing fuse(s), the new fuse must

have the same specification as the old fuse.

Motor starter (three-phase)

or motor relay

(single-phase) not

energizing.

Check voltage at starter or relay coil.

• If voltage is present and starter or relay does not

energize, replace starter or relay.

• If voltage is not present, check all components in

series with the starter or relay coil.

Troubleshooting

• Check all fuses inside the control panel(s). Replace

any blown fuse(s) with a fuse of equal specification.

• Make sure the correct voltages are present at the

proper locations inside the control panel(s).

Before performing the detailed troubleshooting procedures, check the following items first:

When service under the dock leveler is required,

always lock all electrical disconnects in the OFF

position after raising the platform and engaging the

maintenance prop. Failure to do this may result in

serious personal injury or death.

Always post safety warnings and barricade the

work area at dock level and ground level to prevent

unauthorized use of the dock leveler before

maintenance is complete. Failure to do this may

result in serious personal injury or death.

Always stand clear of the dock leveler lip when

working in front of the dock leveler.

The maintenance prop MUST be in the service

position when working under the dock leveler. For

maximum protection, use an OSHA approved

locking device to lock the maintenance prop in the

service position. Only the person servicing the

equipment should have the key to unlock the

maintenance prop.

Unless the dock leveler is equipped with a tethered

remote, two people are required to engage the

maintenance prop: one person to operate the unit,

the other person to engage the maintenance prop.

Failure to follow these instructions may result in

serious personal injury or death.

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 55 56

Commentaires sur ces manuels

Pas de commentaire

Poweramp PR SERIES HYDRAULIC 4.2009 Manuel d'utilisateur Page 37

Commentaires sur ces manuels

Produits connexes et manuels pour Hoist Poweramp PR SERIES HYDRAULIC 4.2009