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INSPECTION & SERVICING (POWER PACK)
PHE power pack and all its components are built for long and efficient service. Minimal maintenance
is required, but a regular maintenance program should be performed periodically and at regular
intervals.
A large percentage of hydraulic problems arise from dirt, faulty servicing and using the wrong oil.
You must always check the quality of the hydraulic oil and also the oil level. When the oil level is very
low (below the filter), air will injected into the system and the temperature will rise considerably.
This will greatly reduce the life span of the pump, and therefore the oil level must be check on
regular basis.
Operating temperature depends on the surroundings, i.e. methods of operation, operating
conditions, ambient temperature, etc.
Operating temperature from -15⁰C to +70⁰C is acceptable.
Testing has proven that the ideal operating temperature is not more than +60⁰C.
Higher temperatures will cause the oil to age faster, causing the life of hoses and seals to be
shortened.
Be sure that the viscosity of the oil does not fall below 9 CST. This will cause pump failure.
SITUATION
Dark colored oil
Milkiness
Air bubbles
Floating contamination
Odor of burning oil
Other checks:
Routine inspections are necessary to eliminate problems along the way. Always rectify any problems
as soon as they are known.
Look for:
▪
Contamination
▪
Leakage at the couplings
▪
Visual damage
▪
Noise in the power pack
PHE Tail Lift Operation & Maintenance Manual
THE CLEANLINESS OF THE HYDRAULIC OIL IS VERY IMPORTANT TO
HYDRAULIC POWER PACK. DIRTY HYDRAULIC OIL MIGHT INTERRUPT THE
OPERATION AND EVEN DAMAGES THE COMPONENT.
CONTAMINATION
Oxidation of product
Water
Air
Hard substance
Aging products
42
TL-15-R04
REASON
Overheating
Water or air in system
Loose connection or low oil
Abrasion, dirt or aging
products
Overheating
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