Transcript Trouble Shooting

Don’t learn from the butterfly
fluttering aimlessly from flower to flower in a garden
-Danfoss
-Think and work in logical order and
literally follow the direction of the
current whether talking about hydraulic
or electrical currents
-Sherm
-Determine whether the error is
electrical or hydraulic, but
remember: Without specified
pressure and flow it is not easy to
find the cause of failure
-Check whether
battery voltage is
correct
-Check whether
there is water on the
battery cells
-If a lot of water is
missing the terminal
voltage of the battery
may be ok in
unloaded condition,
but loaded it will drop
many volts
-Are the fuses intact
and emergency stop
and/or key contacts, if
any connected?
-Has a lead been
shaken loose?
-Are the leads from the
power supply correctly
polarized, plus to plus
and minus to minus?
If the user of the vehicle is present he
should be thoroughly questioned about:
-The kind of failure and influence
on the system
-For how long has he noticed that
something was going wrong
-Has he been “fiddling” with leads and
plugs himself
-Has he got hydraulic and electrical
diagrams at his disposal
LOOK
LISTEN
Advice
FEEL
ASK
THINK
Advice
before
ACTING