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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-AH13-ATLF REV1
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HOIST COMPONENTS AND CHAIN
4.8
TYPES OF CHAIN
Only the correct size and grade of load chain should be used.
All chain is to EN818/7 - EN1677 standard
TCS-980
STANDARD
HEAVY DUTY
STAINLESS STEEL
RUD
KITO
RUD
Nominal diameter:
6.3 + 0.1 / - 0.25
mm 6.3 + 0.3 / - 0.3
mm 6.3 + 0.1 / - 0.25
mm
Pitch:
19.1 + 0.2 / - 0.1
mm 19.0 + 0.37 / - 0.00 mm 19.1 + 0.2 / - 0.10 mm
Max dia at weld:
6.8
mm 6.8
mm 6.8
mm
Min breaking force:
50.0
kN
50
kN
40 (G60)
Kn
Surface hardness:
500-650HV5
Grade 80T
ca250HV5
Grade:
EN818/7 ISO 3077
EN818-7 ISO 3077
DIN5684 - 8 + EN818/7 ISO 3077
NOTE:
Spark resistant hoists are fitted with KITO nickel plated heavy duty chain or 60 stainless steel chain. Please refer to supplier.
When supplied new, only quality chain from a reputable supplier has been fitted to the hoist. Your supplier will be able to offer replacement
chain of like quality.
4.9
EMERGENCY LOWERING
In the event of a main air supply failure Red Rooster pneumatic hoists will stop hoisting or lowering and the springs on the disc brake will
automatically close the brake holding the load in position.
The next steps will depend on whether the load is being lifted at the time, how long it will be until the air supply is available again and if it is
necessary and safe to travel / lower the load to a safe position.
If the problem is a burst hose, this can easily be replaced so there is no need to recover the load, but if the main compressor will not be
operational for some time then a suspended load may need to be recovered to a safe position.
OPTIONS:
1)
A secondary or back up compressor can be used as a temporary supply to move and or lower the load to a safe position.
2)
Depending on the load and availability of manual rigging gear the load can first be lifted and the air hoist hook disconnected, then the
load can be lowered to a safe position.
3)
An emergency air supply from an air receiver or a high pressure cylinder and regulator set for 6 to 7 Bar pressure can be positioned
within the working area of the hoist and the air supply hose connected via an on / off valve which can then be turned on to
supply a limited amount of air to make the lift safe. This option will only allow for limited movement so try to choose the option that
requires the least amount of running time.
If it is decided the safest course of action is to keep the hoist suspended the load then slings and shackles should be used to connect to the load
from above (with a SWL equal or greater than the load being lifted by the hoist), to hold the load in case of brake slippage over a long period.
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Summary of Contents for AT2S-LF
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