JLG TOUCAN 861 Service Manual page 27

III-3
Diag I-1
Depress the enable pedal
Nothing
See
following
page
Models
Toucan 861
Updated 04-06
BREAKDOWN
Led enable lit
Condition Pump contactor
Does not stick
Measure the voltage at input
of CR1 - contact n°4 -
24V
Measure the voltage at
terminal block in lower
control box - wire # 10 -
24V
Measure the voltage at pump
contactor terminal - CON 1.
24V
Replace the contactor.
Stick
Measure the voltage at input of
contactor - power cable -
24V
Measure the voltage at output
contactor - power cable -
24V
Measure the voltage at motor
terminals.
24V
Check the condition of the
brushes (battery disconnected).
Correct
Disconnect the pump.
Check for blockage.
Without blokage
Contact JLG Product Support.
Pump turns
Hydraulic oil level.
correct
Check the coupling between
the motor and the pump.
correct
Contact JLG Product Support.
Check / repair the connection terminal block
upper control box - wire # 10 -
< 24V Check / repair link cable to the upper
control box
Check / repair connector CR1 -see § 3.3.2.
< 24V Check / repair the link cable
connector / terminal block.
Check / repair the connection terminal block
Lower control box - wire # 10 -
< 24V Check / repair the link cable
Box / contactor.
Check / repair the relay connections.
Check the connections are tight and
< 24V
absence of oxydation on connections.
Check the power cables.
< 24V Replace the contacts.
Check the connections are tight and
< 24V absence of oxydation on connections.
Check the power cables.
Worn Replace the brushes.
Blocked Replace the pump.
See specific § for analysis.
III-3
Low Fill.
Broken
Replace.
27