Electrical system – JLG 4017PS Service Manual User Manual
Page 229
9-71
3706PS, 3707PS, 4014PS, 4017PS, 33.7, 37.6, 37.7
Electrical System
FAN SPEED
VALVE – SHORT
TO BATTERY OR
OPEN CIRCUIT
4620
5000mS
Hydraulic Fan Reversing is
prevented
Hydraulic Variable Speed Fan is
configured;
short to battery or open-circuit is
detected on TCM J2-11
for 1,000mS
Power cycled
FAN SPEED
VALVE – SHORT
TO GROUND
4621
5000mS
Hydraulic Fan Reversing is
prevented
Hydraulic Variable Speed Fan is
configured;
short to ground is detected on
TCM J2-11 at power-up
Power cycled
FAN REVERSE
VALVE – SHORT
TO BATTERY OR
OPEN CIRCUIT
4622
5000mS
·
Hydraulic Fan Reversing
is prevented
·
Reversing Fan is
prevented
·
Hydraulic Variable
Speed Fan is configured;
Machine Setup’s HYD FAN REV
is YES;
short to battery or open-circuit is
detected on TCM J2-12
·
for 1,000mS
·
Reversing Fan is
configured; short to battery or
open-circuit is detected on TCM
J2-12 for 1,000mS
Power cycled
FAN REVERSE
VALVE – SHORT
TO GROUND
4623
5000mS
·
Hydraulic Fan Reversing
is prevented
·
Reversing Fan is
prevented
·
Hydraulic Variable
Speed Fan is configured;
Machine Setup’s HYD FAN REV
is YES;
short to ground is detected on
TCM J2-12 at power-up
(momentarily energize digital
output if engine speed is zero)
·
Reversing Fan is
configured; short to ground is
detected on TCM J2-12 at
power-up
Power cycled
TRANSMISSION
REVERSE COIL –
SHORT TO
BATTERY OR
OPEN CIRCUIT
4628
Continuously
Direction Selection shall be Neutral
when Calibration’s TRANS
SERVICE is NO
Short to battery or open-circuit is
detected on TCM J5-5 for
1,000mS
Power cycled
TRANSMISSION
REVERSE COIL –
SHORT TO
GROUND
4629
Continuously
Direction Selection shall be Neutral
when Calibration’s TRANS
SERVICE is NO
Short to ground is detected on
TCM J5-5
Power cycled
TRANSMISSION
FWD LOW COIL –
SHORT TO
BATTERY OR
OPEN CIRCUIT
4630
Continuously
Direction Selection shall be Neutral
when Calibration’s TRANS
SERVICE is NO
Short to battery or open-circuit is
detected on TCM J5-3 for
1,000mS
Power cycled
TRANSMISSION
FWD LOW COIL –
SHORT TO
GROUND
4631
Continuously
Direction Selection shall be Neutral
when Calibration’s TRANS
SERVICE is NO
Short to ground is detected on
TCM J5-3
Power cycled