Zltt – Vestil ZLTT series User Manual
Page 5
08/04
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R
OUTINE
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AINTENANCE
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AFETY
C
HECKS
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ZLTT
o
Warning: Care should be taken to identify all potential hazards and comply with
applicable safety procedures before beginning work.
o
Warning: Raise the platform and install the maintenance props before beginning any
inspections or work on the unit.
o
Only qualified individuals trained to understand mechanical devices and their associated
electrical and hydraulic circuits should attempt troubleshooting and repair of this
equipment.
(A) Before each use inspect for the following:
1.) Frayed wires.
2.) Oil leaks.
3.) Pinched or chafed hoses.
4.) Damage or structural deformation to the structural members, cylinder brackets, etc.
5.) Unusual noise or binding, or evidence thereof.
6.) Proper functioning of all limit switches, including those on the loading-side pinch point
guard or photoswitch.
(B) Inspect monthly for:
1.) The oil level. Oil should be 1½” to 2” below the reservoir’s fill hole with the lift in the
fully raised position. See below for oil specification.
2.) Worn or damaged hydraulic hoses and electrical wires.
3.) Pivot point wear.
4.) Rollers’ looseness and wear.
5.) Integrity of the retaining rings on all rollers and on all pivot point pins.
6.) The integrity of the frame anchor bolts, and for cracks in the concrete around them.
7.) Proper functioning of any hand- or foot-operated mechanisms.
8.) Unusual noises or movement during operation.
9.) All the information, safety, and warning labels being in place and in good condition.
10.) The need to clean off dirt and debris.
(C) Yearly inspection
The oil should be changed if the oil 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 at 40°C). Ex: AW 32 or HO 150 hydraulic oil,
or a non-synthetic transmission fluid. You may use a synthetic transmission fluid if you
flush the system with the synthetic fluid before filling the reservoir.