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9/16"
Hex Nut
Relief
Valve
Adjustment
Screw
Installer Verification
Dynamic Test
With “A” kg (see table below) applied to the platform, verify that the lift is able to operate throughout its
full range of normal lifting and lowering.
1. Lower platform to the ground.
2. Place “A” kg (see table below) at center of platform.
3. Press UP switch and verify that the lift is able to operate throughout its full range of normal lifting and
lowering movements.
4. If platform is able to operate throughout its full range of normal lifting and lowering movements, no
adjustment is necessary. If platform does not lift, proceed to step 5, pump relief valve adjustment is
necessary.
5. Access relief valve (see illustration below). Loosen 9/16" hex nut on the relief valve adjustment
screw (do not remove hex nut).
6. Turn adjustment screw clockwise 1/8 turn.
7. Press UP switch and verify lift is able to operate throughout its full range of normal lifting and
lowering movement.
8. If lift does not operate throughout its full range, repeat steps 6 through 8. If lift does operate
throughout its full range, tighten 9/16" hex nut (do not turn relief valve adjustment screw while
tightening hex nut).
Test of Operations and Safety Functions
All functions of the lift and operations of all safety devices are veried after the static and dynamic tests
have been completed. These tests do not apply to pipe break valves nor non-resettable safety devices
such as electrical fuses (These items are the subject of a manufacturer’s type test).
A 272 363
B 340 454
Lift With
272kg (600 lb.)
Load Rating
Lift With
363kg (800 lb.)
Load Rating
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