Nihon Bisoh Co.,Ltd. BISOMAC210 3Phase MM2014/11
KH-2014008 Rev.4
21
4. WORK ENVIRONMENT
Many work environments where the hoist is used contains contamination which may affect
performance and operation of the hoist. Inspect the operation of the hoist frequently
according to section 7.
When using the hoist in a dirty environment that contains epoxy, paint, cement, sand blast
residue, or corrosive material, protective covers are recommended.
Protective covers may hide safety instructions and warning labels. Before operating the
hoist, put off the covers and make sure to read all the labels and fully understand the
instructions and warnings on the labels.
WARNING
1. When using the hoist in a dirty environment, inspect the operation of the hoist
frequently.
Perform disassemble maintenance after completing work at each work site to
remove contamination in the hoist and inspect the operation of the hoist.
Contamination in the hoist may cause malfunction. This may cause the platform to fall or
tilt and consequently operators or objects might fall, resulting in serious injury or death to
operators or passers-by.
2. Never operate the hoist in an explosive atmosphere. The hoist is not designed to be
used in such environment.
If the hoist is used in an explosive atmosphere, explosion or fire may occur. This might
result in serious accidents.
NOTE:
An explosive atmosphere is defined as a mixture of dangerous substances with air,
under atmospheric conditions, in the form of gases, vapors, mist or dust in which,
after ignition has occurred, combustion spreads to the entire unburned mixture.
NOTE:
When using the hoist in a dirty environment that contains epoxy, paint, cement, sand
blast residue, or corrosive material, performance and operation of the hoist may be
affected. Using protective covers are recommended.
NOTE:
When using the hoist in freezing temperatures, freezing of moistures in the hoist may
affect the operation of components of the hoist. Oil in the gear box may be cured.
This may cause BISOMAC to start hardly. After work, necessary preventive measure
not to freeze moistures in the hoist must be taken.
CAUTION
Prolonged use of the hoist with protective covers may cause overheating of motor.
When using protective covers, check if the air supply to the motor is sufficient frequently,
and if it’s overheated, stop operating and wait for cooling down.
