Vestil RR-68-20 handleiding

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Handleiding

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Table of Contents 7/2/2019 RR MANUAL
Table of Contents Copyright 2019 Vestil Manufacturing Corp. Page 17 of 25
Installation
Never work under a dock leveler unless the maintenance prop is installed in its socket.
The Dock Leveler must be level to function properly.
Do not modify the dock leveler to fit in a pit.
1. Measure the pit’s dimensions.
2. Using steel shims, position shims under the
frame to prevent frame distortions and flex so
the Dock Leveler’s final, resting position meets
the following:
The Dock Leveler should be level.
The Dock Leveler should be against the
rear pit curb angle.
The platform should be centered from side
to side within the pit.
The Dock Leveler’s rear channel must be
flush with the rear curb angle.
Do not allow the Dock Leveler
to be above the pit’s rear curb
angle.
3. With the shims in position, skip weld the rear
hinge channel to the rear curb angel, 4 inches
every 8 inches.
4. Grind welds smooth.
Operation, EH Series
The Dock Leveler has an electric motor directly
coupled to a gear-type hydraulic pump to
pressurize the hydraulic system. Hydraulic
pressure allows the cylinders to lift the platform
and extend the lip. The hydraulic control
components are housed within a manifold bolted
directly onto the gear pump. All hydraulic
components are rated for 3,000 psi working
pressure.
Notable power unit parts include:
1. Electric motor: The A/C motor operates on either single-phase or 3-phase AC, depending on the motor
ordered.
2. Gear pump: The pump shaft is coupled directly to the electric motor shaft.
3. Pressure relief valve: At pressures greater than 1,500 psi, fluid flows back into the reservoir.
4. Lip relief valve: The adjustable valve controls the Lip’s retract rate after the platform has risen.
5. Check valve: It prevents fluid backflow through the pump.
6. Pilot-operated check valve: This valve is closed while the leveler rises and it opens when the pilot pressure
drops to less than 1/3 of the inlet pressure, causing the deck to descend.
NOTE:
Pit bottom
should slope
¼ in.
from
back to
front.
The r
ear wall
(
pit depth)
should be
23
3
/
4
in. Front
face pit depth
should be
24”.

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Productinformatie

MerkVestil
ModelRR-68-20
CategorieNiet gecategoriseerd
TaalNederlands
Grootte5984 MB