Vestil EHLTT-4848-5-47 handleiding
Handleiding
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TABLE OF CONTENTS Rev. 6/5/2024 EHLTD MANUAL
TABLE OF CONTENTS Copyright 2024 Vestil Manufacturing Co. Page 31 of 35
Solenoid valve maintenance.
If the platform slowly lowers on its own after releasing the LIFT
LOWER control, it will be necessary to remove the lowering cartridge
valve (port LL/FC; item 3 in diagram; also see relevant MANIFOLD
ASSEMBLY diagram, item 3, part. no. 99-153-015, p. 15) for inspection
and cleaning.
1. Unload the platform. There must be no load applied to the platform.
2. Raise the platform. Deploy the maintenance props. Lower the
platform until the props solidly contact the corners of the base frame.
3. On most EHLTT models, the power unit is attached to the hinged side
of the scissor lift mechanism. The manifold assembly is attached to the
end of the power unit.
4. Remove the nut holding the solenoid coil (item 3, right) on the
solenoid valve stem. Remove the coil (9) and unscrew the valve (3)
from the manifold.
5. Inspect the valve for contaminants. Inspect the O-rings and back-up
washers for cuts, tears, or other damage.
6. 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 (). 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.
7. If the spool continues to stick, the stem could be bent. The
valve will need to be replaced.
8. Blow the valve off with a compressed-air gun while again
pushing the spool in and out.
9. Inspect the bottom of the manifold’s valve cavity for contaminants.
10. 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).
11. Reinstall the solenoid valve, tightening to 20 lb-ft of torque. Reattach the solenoid coil and the
retaining nut.
Bekijk gratis de handleiding van Vestil EHLTT-4848-5-47, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Vestil |
| Model | EHLTT-4848-5-47 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 8414 MB |
