|
Many
tests do not require removing the
Electro Lift® unit from the vehicle.
However, more thorough testing can be
performed using the Meyer Test Stand
which allows direct pressure and
amperage readings.
1.
Use a screwdriver or other small tool to
check for magnetism of the solenoid
coils "A", "B", "C". Place
the tool on the nut securing the coil
and have an assistant operate the
switch. You should feel strong magnetic
attraction.
2.
Use a test light or volt meter to
determine whether there is power at the
harness or switch.
3.
When determining AMP draw of the motor,
always obtain the highest value
possible, i.e., at maximum raise or
maximum angle with motor running.
4.
Proper rotation for the 3" motor
(American Bosch) is indicated by an
arrow located on top side of the (Part #
15026) pump.
5.
The pump shaft of a good pump can be
turned smoothly using two fingers. If it
can't be turned easily, the pump is
too tight and must be replaced.
6.
Pump pressure can be measured at an
angle hose (note pressure at full angle)
or in the pressure filter port (an
adaptor is necessary for the filter
port). Note: The E-57 Electro Lift®
Unit has a non-adjustable pressure
relief valve.
7.
Flush the complete system including
unit, hoses and power angling rams with
a non-wax (Napthenic) cleaner. If
kerosene (Parrafinic) is used to flush
the system, the system must be flushed
again to remove any kerosene with a (Napthenic)
based cleaner that is wax free.
Download Diagnostic Flow Pdfs
|
