GENERAL DESCRIPTION
Electro Lift
®
unit is an electrically powered and
electrically controlled hydraulic mechanism specifically
designed for use with Meyer Snow Plows. The standard
model E-46 raises and lowers the plow hydraulically
with an integral 6" stroke hydraulic cylinder while the
model E-46H performs the identical task for larger plows
with an integral 8" stroke hydraulic cylinder.
In addition to raising and lowering the plow
hydraulically, the model E-47, E-47H and
E-57, E-57H angles the plow hydraulically, left and
right, via remote hydraulic cylinders.
The Electro Lift
®
unit consists of a specially designed
high torque 12-volt DC motor which is directly coupled
to a gear-type hydraulic pump. The pump obtains its
supply of hydraulic fluid from an integral reservoir which
totally surrounds the integral hydraulic cylinder which
raises and lowers the plow.
Included in all models is an electrically controlled and
powered solenoid valve cartridge “A” which is
energized to allow the plow to lower by gravity.
The models E-47 and E-57 include an integral valve
body which contains two additional electrically
controlled solenoid valve cartridges. Solenoid valve
cartridge “B” is energized to route the pressurized
hydraulic fluid to the integral hydraulic cylinder to raise
the plow. Solenoid valve cartridge “C” is energized to
route the pressurized hydraulic fluid to the left remote
hydraulic cylinder to angle the plow to the right. Angling
the plow to the left only requires energizing the electric
motor since the normal route for the pressurized
hydraulic fluid is to the right remote hydraulic cylinder.
Additional components which control and supply
electrical current to the Electro Lift
®
unit are an operator
controlled toggle switch; a solenoid switch to supply
high amperage current to the unit’s motor; a wiring
harness to distribute low amperage current between
the toggle switch or switches, motor solenoid and the
solenoid valve cartridge(s); and short heavy gauge
cables to distribute high amperage current directly from
the positive terminal of the vehicle’s battery and ground
the unit directly to the negative terminal of the vehicle’s
battery.
THEORY OF OPERATION
FUNCTIONS
The Electro Lift
®
models perform basic functions.
Because certain of these basic functions are
accomplished differently in the models E-46 and
E-46H as opposed to the Power Angling models will
be treated separately where necessary.
Models E-46 and E-46H
The two basic functions performed are:
• Raise snow plow
• Lower snow plow and float
Refer to Figures 1-1 and 1-2 (pages 6 thru 9) for
electrical and hydraulic flow chart for each function.
Each figure explains which component is actuated and
related in each function.
Models E-47, E-47H and E-57, E-57H
The four basic functions performed are:
• Raise snow plow
• Lower snow plow
• Angle snow plow to right
• Angle snow plow to left
Refer to Figures 1-3 through 1-6 (pages 6 thru 18) for
electrical and hydraulic flow chart for each function.
Each figure explains which component is actuated and
related in each function.
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