Portable Winch Gas-powered pulling/lifting winch PCH1000 - Manual (Page 25)

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Standard voice signals shall be discussed and agreed upon by the operator and the
signalperson prior to beginning lifting operations using voice signals.
If special signals are required, they shall be agreed upon in advance by the winch operator and
the signalperson. These signals should not be in conflict with the standard signals.
3.4.2.2 Load lifting charts
BEFORE ATTEMPTING TO LIFT A LOAD, IT IS IMPERATIVE TO EVALUATE
ITS APPROXIMATE WEIGHT.
When lifting a load, you may figure the minimal number of wraps required on the capstan drum
in order to move the load. Below are two charts in accordance with the capstan drum size used.
These charts are designed to help figure out the number of wraps you need to lift a load and
also allow its lowering. The friction on the capstan drum is relative to the size of the drum
installed, the number of wraps and the load weight, therefore too many wraps may prevent a
load to lower.
IMPORTANT NOTE: IF THE MOTOR STALLS WHILE LIFTING A LOAD,
YOU HAVE EXCEEDED THE RATED LIFTING CAPACITY. THEREFORE, YOU MUST
LOWER THE LOAD TO RELEASE THE TENSION ON THE ROPE AND INSTALL A BLOCK
AND TACKLE DEVICE TO INCREASE THE LIFTING CAPACITY BEFORE RESTARTING TO
PULL.
Number of
wraps on the
57 mm (2- 1/4’’)
capstan drum
Weight
Kilograms Pounds
From To From To
1 Never use only one wrap on the drum
2 1 kg 80 kg 2 lb 176 lb
3 81 kg 170 kg 177 lb 374 lb
4 171 kg 250 kg 375 lb 550 lb
Number of
wraps on the
85 mm (3-
3/8’’)
capstan drum
Weight
Kilograms Pounds
From To From To
1 Never use only one wrap on the drum
2 1 kg 80 kg 2 lb 176 lb
3 81 kg 175 kg 177 lb 385 lb