Vestil EHLT-TL-30144-4-46 handleiding

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Operator’s Manual 10/23/2023 EHLT-TL MANUAL
Table of Contents Copyright 2023 Vestil Manufacturing Co. Page 18 of 22
7. Proper functioning of any hand- or foot-operated mechanisms.
8. Unusual noises or movement during operation.
9. Condition of all information, safety, and warning labels. These should be clean and clearly legible.
10. Dirt and debris. Clean, sweep, or wipe down as needed.
Annual inspection.
Check the condition of the oil. Change the oil if it darkens, becomes gritty, or turns a milky color (indicating the
presence of water). Replace with an anti-wear hydraulic oil with a viscosity grade of 150 SUS at 100°F (ISO 32 cSt @
40°C), such as AW 32, HO 150 or Dexron non-synthetic transmission fluid. You may use a synthetic transmission fluid if
you flush the system with the synthetic fluid before filling the reservoir. 150 SUS at 100°F (ISO 32 cSt @ 40°C) or
Dexron transmission fluid.
Solenoid valve maintenance.
In the event that the platform slowly lowers on its own (after releasing the
“DOWN” control), remove the lowering cartridge valve for inspection and cleaning.
a. Remove any load from the platform.
b. Raise the platform. Deploy all 4 maintenance props into the side frame. Lower
the platform until it rests on the props.
c. Refer to page 14. Identify and locate the power unit, which is attached to one
of the leg sets. The manifold assembly is attached to the end of the power
unit.
d. Remove the nut holding the solenoid coil (item (2), right) on the solenoid
valve stem. Remove the coil (2); then unscrew the valve (7) from the
manifold.
e. Inspect the valve for contaminants. Inspect the O-rings and back-up washers
for cuts, tears, or other damage.
f. With the valve immersed in mineral spirits or kerosene, insert a thin tool such
as a small screwdriver or a small hex wrench in the hole at the bottom of the
valve (illustration, next page). Push the spool in and out several times. A
properly functioning spool should move freely, with about 1/16” of travel. Use
mineral spirits to flush the valve.
g. If the spool continues to stick, the stem could be bent. The valve will need to
be replaced.
h. Dry the valve with compressed air while again pushing the spool in and out.
i. Inspect the bottom of the manifold’s valve cavity for contaminants.
j. Make sure both O-rings and outer seal (flat) are seated on the valve body.
Make sure the screen filter is in place and seated at the bottom of the threads
on the valve body (illustration).
k. Reinstall the solenoid valve, tightened to 20 ft-lb of torque. Reattach the solenoid coil and the retaining nut.

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Productinformatie

MerkVestil
ModelEHLT-TL-30144-4-46
CategorieNiet gecategoriseerd
TaalNederlands
Grootte5647 MB