REMA Hoistman HM-15, Owner'S Manual

Page: 16 / 36

16
CAUTION
Whenever carrying out the maintenance, inspection or repair, prepare a warning indication of "Under working"
("Under Inspection" ,etc.).
Notice:
Inspections requiring dismantling and assembling of the unit should be carried out by dealers of our products.
INSTALLATION AND OPERATION
1. Installation
WARNING

The unit should not be operated by persons who have not fully understood this manual, instructions or plates on
the unit.

The support(structure such as buildings) on which the hoist body is installed is to bear loads more than 4 times the
rated load.
In case that the chain hoist is suspended from a crane as an auxiliary device, its safety factor should be 5.
It is very dangerous to use a support of which strength is not sufficient, as it may be damaged due to the load.
PROPER HANDLING AND CAUTIONS
Slinging method
WARNING

Inspeet all the tools to be used on the day before use.

Wrong slinging may cause quite dangerous situations such as fallen loads etc.

Avoid slinging methods as shown bellow, with are very dangerous.
1) How to apply a load incorrect slinging (Avoid the examples below): to the hook.
Correct slinging: the
load coinsides with
the axle of the hook. A supporting structure
or the sling is set on
an improper point of
the hook. Too wide slinging
angle, it should be
within 60°
The safety latch does
not properly function. Onlu the tip of the
hook cannot bear a
load.
2) Never wind a load chain directly around a load regardless of its
weight. It is quite dangerous, since the load chain may be
broken.(Fig.1 ) It is dangerous to wind the load chain around the hook of a chassis
etc., because the strength of the chain will be reduced to 1/3 to
1/5 of
the normal value.(Fig.2)
3) The load chain twisted should not be loaded, as the bearing capacity
of the chain will be reduced in a twisted state. Be sure to bring the
load chain into straight state before applying a load.(Fig.3)
In a chain hoist with more than 2 falls, it will
happen that the chain is twisted by the bottom
hook which goes through between the chains
and is turned. In this case, the twist should be
cleared by returning the bottom hook through
the chains.(FigA)
4) Do not suspend the top hook on a single wire
rope. The hook cover may be worn out due to
the movement of the wire rope being detwisted
The twist can be
cleaned by returning
the bottom hook
through the chains.
The chain will be
twisted by the
bottom hook going
through between
the chains.
The chain
which is not
twisted shows
welded
portions in the
same direction.
REMA®
MANUAL©