22
INSPECTION & MAINTENANCE
INSPECTION BEFORE USE
MONTHLY AND ANNUAL INSPECTIONS
!
• When inspecting the hoist, turn the power
source “OFF” and hang out a sign that distinctly
indicates that it is under inspection. Inspect
the hoist while it is not under a load. Consult
the uthorized NITCHI dealer or distributor from
where the hoist was purchased when repairs of
replacement parts are required.
DANGER
MANDATORY
!
Daily, monthly and annual inspections are essential for ensuring a long and safe lifetime of the hoist. All
inspections and repairs must be carried out by competent responsible people authorized by the per-
son in charge of the hoist. Always check the following safety procedures when inspection and mainte-
nance work are carried out on the hoist:
While the hoist is not under a load, confirm that the whole length of the load chain is well lubricated.
When the load chain requires lubrication, be sure to give the contact points between the links extra
coatings of machine oil. The load chain must not be deformed and elongated and it must be free of
twists and kinks. Check especially carefully when the hoist lifts on two or more falls of load chain.
The hooks must not be elongated and deformation must be within the limits indicated in Table 9.
The safety latches must all be in good condition and moving smoothly.
The pendant push button switch must function properly and smoothly.
While the hoist is not under a load, confirm that the limit switch and brake systems are functioning
correctly.
The trolley and/or crane must be free of faults that prevent smooth and safe operation.
The components of the hoist will eventually wear from use. Tables 6 and 7 give inspection points that
are essential for insuring a long and safe lifetime of the hoist.
MONTHLY INSPECTION
lnspect the hoist once a month, and keep a record of all inspections and repairs on file.
ANNUAL INSPECTION
Check all sections of the hoist especially carefully once a year, and keep detailed records of the inspecti-
ons and repairs on file.
