16
３．
Preparation of the Air Hose
WARNING
;
Do not use Quick Coupler for connection.
・
Quick Coupler restricts air flow too much. This leads to significant degradation of the hoist
performance and to trouble on brake part.
・
Size of Hose
：
The hose size for this hoist is
ID 38mm or larger
.
Prepare suitable hose band for hose size.
・
Length of Hose
：
IMPORTANT
;
We recommend to keep the hose length within 10 meters.
・
If the hose is too long, the air pressure will drop at the hoist. In order to prevent the pressure
drop,
use a hose with ID larger than 50mm
.
Please refer to the following chart showing the relationship between air flow and pressure
drop for a 10 meter long hose.
0.4
0.0066
0.0117
0.0182
0.0263
0.0358
0.5
0.0055
0.0097
0.0152
0.0219
0.0298
0.6
0.0047
0.0084
0.0131
0.0188
0.0256
Air
Pressure
(MPa)
14
38
Hose;10 meters in Length with free air flow (m
3
/min)
10
8
12
6
Size of
Hose
(mm)
(MPa)
※
The chart information shows the pressure reduction at each Air Pressure at free flow. The pressure drop has been
calculated by subtracting the pressure from the inlet of the hose to the outlet port.
※
If the hose length is longer than 10
meters, the relationship of the pressure drop if proportional to the extended
length. As a result, if the hose length is 20 meters, you would multiply the above chart numbers by 2.
４．
Check the strength of the beam before installing the hoist.
WARNING
;
Before installing the hoist to the beam make sure the safety
factor is met.
・
Before installing the Air hoist to the beam, make sure the rated load for the beam exceeds the
rated load for the air hoist with the proper safety factor. If the rated load of the beam does not
exceed the rated load of the air hoist, please do not install the air hoist to this location.
Air & Allied Sales (Pacific) Pty Ltd
www.air-allied.com.au
