Rolair VT25BIG Manual De Instrucciones página 12

FREEZING TEMPERATURES:
Proper fluid maintenance and warm up procedures are mandatory before attempting to start or operate an air compressor in
freezing temperatures. Water, a natural byproduct of compressed air, could turn into ice and potentially block air flow into,
though, and/or out of the pump, air tank(s), and air line(s). Drain air tanks/ lines after every use and leave drain valves open when
not in use.
If all, or part, of the compressor may be frozen, you must completely thaw the compressor before attempting to start. Gradually
increase the temperature above freezing and then drain moisture from the air tanks, intercoolers, and water traps.
Cold Weather Best Practices:
Do not attempt to start a frozen compressor. Thaw completely first.
•
Store your air compressor in a clean, dry area that stays consistently above freezing temperatures.
•
• Change the oil in the pump and engine to winter grade (check owner's manual).
• Prior to starting, open the tank drain(s) and allow the compressor to run for 45-60 seconds with the tank drain(s) open
before closing to build tank pressure.
• Using a lubricator with de-icing fluid may also be needed to keep your air lines from freezing up/blocked by ice.
• Contact your ROLAIR dealer or our factory customer service department if you have additional questions.
HIGH-ALTITUDE OPERATION:
Due to a decrease in atmospheric pressure air compressor pumps produce less CFM at higher elevations. As a rule of
thumb the output will decrease approximately three percent per 1000 feet of elevation. Also, because air at higher elevations is
less dense and does not cool as well, electric motors cannot be subjected to the full nameplate service factor amp rating and may
need to be upgraded to avoid repeated overheating.
Direct drive or hand-carry compressors built with cold-start valves may need to be modified when operated in higher
elevations. Contact our factory Customer Service Department if your normally reliable air compressor fails to operate correctly at
higher elevations.
Your new air compressor represents the finest engineering and construction available. Even the best machinery requires
periodic maintenance. Please stick to the maintenance schedule and consider the suggestions that follow to keep your compressor
in peak condition.
NOTE: Always unplug or shut down your compressor and drain the air tanks completely before attempting any type of
maintenance. Wait for compressor to cool before servicing.
IMPORTANT: Replace the oil after the first 50 hours of operation.
MAINTENANCE HINTS:
LUBRICATION
Prior to each use, make a habit of checking the pump oil level. Most direct-
drive air compressors have a dipstick with casting marks that indicate the minimum and
maximum acceptable levels of oil. Our belt-driven pumps have a sight gauge, located on
the outside of the crankcase, to make the task even easier. Always maintain the oil level
at the maximum mark on the dipstick or to 2/3 full in the sight gauge
Do not operate the pump with an inadequate or excessive amount of oil. The
cost of failures which occur due to incorrect oil levels will not be covered under
warranty.
OPERATION
MAINTENANCE
1) Use a soap/water solution to check for air leaks.
2) Never clean filters with a flammable solvent.
3) Retorque head bolts only after pump has cooled.
4) Never weld on air tank(s).
5) Use heat to loosen Loctite seal on drain valves, engine
pulleys, and flywheels before attempting to remove.
DO NOT USE A DETERGENT OIL!
NOTE: Unit must be level when in operation
MAINTENANCE
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