Troubleshooting.the.control.unit.pmdc.-.Lihd50; Troubleshooting.the.control.unit.pmdc.-.Lihd60X./.Lihd70X; Overhaul - Husqvarna LiHD50 Workshop Manual

Diagnosis and troubleshooting
6.7 Troubleshooting the control unit
PMDC - LiHD50
Check that the blade terminals and associated
wires are not bent or damaged.
(A) 6.3x0.8mm M- (Black wire)
(B) 6.3x0.8mm M+ (Red wire)
(C) 6.3x0.8mm PCB + (Yellow wire)
(D) 6.3x0.8mm PCB 0V (Black wire)
(E) 4.8x0.8mm Shutdown (blue wire)
See figure 6.
6.8 Troubleshooting the control unit
PMDC - LiHD60X / LiHD70X
Check that the blade terminals and associated
wires are not bent or damaged.
(A and B) 2.8 mm blade terminal to hand guard,
power switch (black wires).
(C) Battery communication (red, black and blue
wires).
(D) Power supply (red wire).
Shares connector with 0V.
(E) OV supply (black wire).
Shares connector with POWER.
(F) Motor + supply (gray wire).
Shares connector with Motor (-).
(F) Motor - supply (black wire).
Shares connector with Motor (+).
See figure 7.

6.9 Overhaul

Inspect the component parts of the machine. Re-
place damaged parts as described in the relevant
chapter.
20 – English
A
C
D
Fig.6
A
B
C D E
Fig.7
B
E
F G