Full Product Manual

INSPECTION AND MAINTENANCE LOAD AND WEAR LIMITS
Read and follow ANSI Inspection and Maintenance Instructions.
Know the meaning of Frequent Inspection, Periodic Inspection,
Normal Service, Heavy Service, and Severe Service.
It is the customer’s responsibility to understand and follow all
ANSI and Sumner inspection and maintenance instructions.
Replace hook when “A” measurement is equal to or greater than the
“A” Limit in FIG 16 and the table below. Never heat treat the hook or
attach anything to the hook by welding.
1. Clean hoist after each use and oil lightly.
2. Do not drop or drag the hoist.
3. Store the hoist in a clean and dry environment.
4. Chain oiling is not mandatory but will increase the life of the chain.
5. Leave all repairs and adjustments of internal parts to qualified
repair personnel.
6. Inspect the load chain and the lower hook after lifting a maximum
weight load.
7. This hoist uses special alloy hoisting chain and does not
interchange with any other manufacturer. All replacement chain must
be purchased from your Sumner distributor or from Sumner directly by
calling 1-281-999-6900.
8. Check and inspect the brake system frequently.
9. Annually, the hoist should be disassembled, inspected, and cleaned
by trained and experienced personnel only. Contact a Sumner
authorized service center by calling your dealer or visiting our web
site at www.sumner.com.
10. After servicing, test the hoist with no load, then test the hoist
with a load.
WARNING
- All repairs and adjustments are to be performed
by trained and experienced personnel using procedures that are
approved for the hoist system being serviced.
WARNING
- All safety related deficiencies discovered in the
inspection are to be corrected before the hoist is placed
back into service.
WARNING
- Check for internal damage whenever external
damage has occurred. Failure to comply may cause serious injury.
17 18
ALLOY STEEL CHAIN:
Carefully inspect entire load chain. As illustrated in FIG15 and
table below, measure five consecutive links with calipers to
measure the length. Check every three feet and especially where
excessive wear is indicated. Any load chain that shows noticeable
deformation or heat influence must be replaced with a new one.
Never extend load chain by welding a second piece to the
original.
FIG 15
FIG 16
HOOK WEAR LIMITS (TOP and BOTTOM)