7 electric motor – JLG R6 User Manual

Page 85

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SECTION 5 - GENERAL SPECIFICATIONS AND MAINTENANCE

3121684

– JLG Lift –

5-25

774

SHORT CIRCUIT FIELD WIRING

The power module detected a problem in the
drive motors' power circuit wiring.

Refer problem to a qualified JLG mechanic.

775

OPEN CIRCUIT FIELD WIRING

The power module detected a problem in the
drive motors' power circuit wiring.

Refer problem to a qualified JLG mechanic.

776

STALLED PUMP MOTOR OR POWER
WIRING ERROR

The power module detected a problem in the
drive motors' power circuit wiring.

Refer problem to a qualified JLG mechanic.

777

OPEN CIRCUIT PUMP MOTOR WIRING

The power module detected a problem in the
drive motors' power circuit wiring.

Refer problem to a qualified JLG mechanic.

778

TRACTION T HIGH - CHECK POWER CIR-
CUITS

The power module detected a problem in the
drive motors' power circuit wiring.

Refer problem to a qualified JLG mechanic.

779

TRACTION T LOW - CHECK POWER CIR-
CUITS

The power module detected a problem in the
drive motors' power circuit wiring.

Refer problem to a qualified JLG mechanic.

7710 PUMP P HIGH - CHECK POWER CIRCUITS The power module detected a problem in the

drive motors' power circuit wiring.

Refer problem to a qualified JLG mechanic.

7711 PUMP P LOW - CHECK POWER CIRCUITS The power module detected a problem in the

drive motors' power circuit wiring.

Refer problem to a qualified JLG mechanic.

7741 ARMATURE BRAKING CURRENT TOO

HIGH

The power module has detected excessive
braking current.

This can be caused by transporting an excessive load on a steep grade.

7-7 Electric Motor

DTC

FAULT MESSAGE

DESCRIPTION

CHECK

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