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USER MANUAL
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Red Rooster Lifting Limited
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Nauta House, The Meadows, Oldmeldrum, Aberdeenshire, AB51 0EZ
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Tel: +44 (0) 1651 872101
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M01-AH27 REV2
AIR SERVICE EQUIPMENT
An air set should be used with all Red Rooster hoists and trolleys.
AIR SERVICE UNITS:
The correct size of air service unit for each hoist type is stated in the table on page 4. The air service unit must be installed with the lubricator unit
down line from the filter unit. The unit should be installed at the hoist inlet port or within eight metres of inlet port. (Siting the unit further away or
well below the hoist will result in lubricant being deposited on the internal walls of the supply line and hence it will be necessary to increase the
lubricant rate above the levels specified (see section 1.2) to ensure adequate lubrication of the hoist. The ambient temperature range is
-5
°
C to +60
°
C (with no freezing).
FILTER UNIT (WATER TRAP)
Manual drain units
As the name implies, these units must be drained by the operator as the filter bowl becomes full of water. The frequency of draining is entirely
dependent upon the usage of the hoist and the moisture level of the air supply.
In clean environments e.g. laboratories, paint spray booths, manual drain filters are essential to prevent contamination.
Automatic drain units
These units are automatically self-purging. When the filter bowl is full it will automatically drain itself. Although very convenient to the user, the
unit must be sited such that either the purged water is captured by a tray or it purges into an area away from personnel, equipment (particularly
electrical equipment) and goods. If contamination from purged water is not a problem then automatic drain units should be selected.
Failure to fit and drain the filter will result in excessive moisture being carried into the hoist valve, motor and brake actuator resulting in internal
corrosion and premature failure.
LUBRICATOR UNIT
There are two types of lubricator available.
Oil mist lubricator
The preferred type, and essential where the lubricator must be sited some distance from the hoist. The unit produces atomised oil particles which
remain in suspension in the air longer.
Droplet Lubricator
Due to the larger particle size of the droplets, these may only be used where the lubricator is close to the coupled hoist.
Failure to fit a lubricator and maintain the correct oil flow will result in rapid wear of the rotor vanes within the motor, excessive heat generation and
failure of the air motor within a very short period.
Keep the lubricator topped up with a light turbine oil.
WORKING PRINCIPLE AND ADJUSTMENT
A portion of the air introduced from the IN side pressurises the lubricant inside the bowl. The remainder of the air passes through the needles
9 , and flows to the OUT side. The pressure differential between the inside of the bowl and the inside of the sight dome 2 , causes the lubricant
inside the bowl into the oil passage 10 . The lubricant drips from the dripping tube 11 , and lubricate the OUT side. The amount of lubricant is
adjusted by the needle 9 , on the front face. Turning the needle clockwise increases the amount of lubricant, and turning it counter clockwise
until fully opened shuts off the lubricant. The needle on the side that is not used should be left fully opened.
DANGER
CAUTION
CAUTION
DANGER
DANGER
9
Needle
Section AA
A
A Out
In
11
10
2
