BOXER KING 5600 - Hydraulic Motor Check and Replacement

Service Manual 04/2010 Rev.B
54
 Check if the fuses F2 and F3 are fine (5.6).
 Check if the coil of minimum tension is fine.
 Check if the hydraulic motor is fine (5.7).
TO REPLACE THE CIRCUIT BRAKER:
 Disconnect power supply.
 Remove all wires from the breaker.
IMPORTANT!
MARK THE WIRES PROPERLY FOR AN EASY
AND SAFE INSTALLATION.
 Pull downward the tab and lift the breaker up
for its removing.
 Install the new breaker .
 Connect all wires FIRMLY.
 Regulate the breaker by turning the wheel #1
(Fig.68) according the amperage printed on
the label of the pump motor.
Fig.68
IMPORTANT!
AT THE END OF THE OPERATION CHECK THE
ROTATION WAY OF THE HYDRAULIC MOTOR:
IF IT IS WRONG REVERSE ONLY THE
BRAKER WIRES OTHERWISE THE CHUCK
MOTOR WILL TURN WRONGLY.
5.4 HYDRAULIC MOTOR CABLE:
CHECK AND REPLACEMENT
 : 1h
 : Medium screwdriver, medium cross
screwdriver, 7mm tube type wrench, socket
head screw 6mm, end wrench 13mm,
multimeter, pliers.
L : Defective cable may cause the following
malfunction:
1. Low motor and hydraulic power.
2. Circuit breaker shutting off.
3. Noisy motor.
4. Motor damaging (burning).
TO CHECK THE CABLE:
 Disconnect power supply.
 Open the electric box (5.0).
 Disconnect the motor wires from circuit
breaker Q2.
 Remove the motor terminals cover and
remove all wires from terminals.
 Select the multimeter in Ohm and check if
there is continuity between ends of each wire.
TO REPLACE THE CABLE:
 Release cable strain relief on the electric box
and on the motor.
 Take the wrong cable away.
 Insert the new cable through the strain relief.
IMPORTANT! : USE ONLY APPROVED CABLE
AND GROUND WIRE MUST BE LONGER THAN
THE OTHER ONES.
NOTE: Before connecting the wires ends, tighten
all terminals nuts on the motor.
 Fix new fastons on inside cable ends and
connect them to the motor and breaker
terminals.
 Check the rotation way of the motor: If it is
wrong reverse only two motor wires otherwise
the chuck motor will turn wrongly.
 Mount the motor terminals cover.
 IMPORTANT: WHEN REMOUNTING THE
MOTOR TERMINALS COVER BE CAREFUL
NOT TO CRUSH WIRES.
5.5 HYDRAULIC MOTOR: CHECK AND
REPLACEMENT
 : 1h
 : End wrench 13mm, 7mm tube type wrench,
13mm long tube type wrench (Fig.10),
medium standard screwdriver, medium cross
screwdriver, socket head screw 6 and 3mm,
multimeter, amperometic pliers, rubber
hammer, calliper.
L : Defective hydraulic motor may cause the
following malfunction:
1. Turning the switch on the hydraulic motor
does not run at all.
2. Motor stops when high hydraulic pressure is
required.
3. Circuit breaker shutting off.
4. Motor noisy.
5. Turning the switch on the motor turns but the
machine does not make any hydraulic
movements.
IMPORTANT!