Part No. 57.4400.9203 GTH-4016SR • GTH-4018SR
65
March 2010
REV A
Section 4 • Repair Procedures
SENSORS
8-5 How to Test the Turret
Proximity Switches
1. Align the turret to the chassis.
2. Insert the turret locking pin.
3. Check that, on the overload system display, the
writing “TURRET ALIGNED” appears on the
8th row.
4. Check that, on the overload system display,
the writing “TYRES FRONTAL” (or
“OUTRIGGERS FRONTAL” if the machine is
on stabilizers) appears on the 2th row.
5. Remove the turret locking pin.
6. Turn the turret more then 10° (refers to the
decal applied on the chassis)
7. Check that, on the overload system display, the
writing “TYRES LATERAL” (or “OUTRIGGERS
LATERAL” if the machine is on stabilizers)
appears on the 2th row.
8-6 How to Test the Chassis
Proximity Switches
1. Remove the outriggers steel guards.
2. Raise the outriggers and verify that the yellow
LED placed on the proximity switch is on
3. Check that the machine can move.
4. Lower the outriggers.
5. Remove the turret locking pin.
6. On the overload system display, simultaneously
press the two buttons
PLUS (+)
and
MINUS (-)
to access the
Diagnostic Screen Pages
.
7. Using the
ARROW
buttons, reach the page
“
STABILIZERS SENSOR
” to verify that:
all the “safety switch” values correspond to
1
all the “stab down” values correspond to 1
8. Using the selector dedicated, set the steering
mode to four-wheel steering and completly
turn the steering wheel.
9. Using the dedicated selector, set the steering
mode to two-wheel steering andslowly turn the
steering wheel in the opposite direction than
above.
10. Check that, on the overload system display,
the writing “
REAR TIRES ALIGNED
” appears
on the 8th row.
