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6-MONTHS MAINTENANCE — HYDRAULIC OIL CHANGE
When any work is to be done on body or hoist and body is fully or partly
raised, body must have both props securely set or be blocked securely so it
cannot fall. In addition, the HOIST control lever must be in neutral with the
hoist lever lockout engaged in the "lock" position and the PTO disengaged.
1. We recommend that the oil in the system be changed at least twiyear. (See
weekly maintenance schedule for oil level.)
When adding or replacing oil, use a hydraulic oil with an SAE viscosity rating
of 10W, that contains antifoamant, rust and oxidation inhibitors, and an antiwear
additive. If a hydraulic oil is not available use an API engine oil, designation
SE, with an SAE viscosity rating of 10W.
DO NOT use low viscosity naphtha base motor oil, hydraulic brake uid, or air
craft hydraulic uid.
2. Oil lter to be changed routinely at each half year interval (ap-proximately
500 hours).
CORRECTIVE MAINTENANCE (TROUBLESHOOTING)
The operation of any mechanical or hydraulic system depends on the
life span of the various parts. Some parts should last indenitely, oth-
ers may not. This section is a generation guide to the causes of possible
equipment malfunction.
Safety
Respect the potential danger of the equipment. Observe all "Safety Pre-
cautions" while working on the equipment.
Whenever the body is in any elevated or raised position it must be
securely propped or blocked so it cannot fall on anyone
Test Equipment
Use high quality test equipment. Any gages or instrumentation used in checking
hydraulic systems in these hoists must be capable of withstanding 3000 psi (20 684
kPa) minimum pressure.
Trouble Chart
To aid maintenance people in nding and correcting a problem, a trouble chart has
been included.
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