Operator`s manual

4.4.2 Hydraulic System
The oil tank, located on the vehicle chassis, has a capacity of 45 gallons, the amount needed to ensure
the hydraulic system operates at maximum efficiency. The hydraulic oil level should be checked
frequently. Refill as required.
When the ladder is in regular service, maximum time between oil changes must not exceed 1 year.
However, it is recommended that an oil probe be taken from the tank for analysis by an oil company
laboratory. Oil should not contain flakes.
4.4.3 Oil Analysis
For hydraulic oil analysis, a sample should be taken from the bottom of the reservoir after the hydraulic
system has been operating for not less than 10 minutes.
Analysis must be made at the oil manufacturer’s laboratory. Any foreign matter in the oil may endanger
the hydraulic system.
Utmost cleanliness must be observed in storing hydraulic oil. The oil may be affected by:
a) Water caused by condensation:
Traces of more than 0.1% of water in the oil are damaging to the hydraulic system. 0.3% to
0.5% of water in the oil mean that the hydraulic system cannot be operated safely.
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