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Hour/Count Meter
The count/ Hour (C/H) Meter located in on the electrical control panel records the hoists on time and
number of starts.
Contactor-The C/H Meter can be used in conjunction with the amount of jogging to estimate when the
contactor(s) should be replaced. Jogging is when the pendant control buttons are pressed quickly and
repetitively to move the hook in small increments. Refer to Table 1-1.
Table 1-1 Criteria for Recommended Contactor Replacement
Jogging During Normal Operation
Low
Rating
Medium
To change gear oil of VFD hoist, check elapsed run time of the inverter which indicates hoist operation
hour. Please refer to inverter manual(PF523) of ENGLISH SECTION.(b019-Elapsed Run Time)
Refer to table 1-2 as well.
High
950,000
500,000
200,000
During 25% of operations/ lifts.
During 50% or more of operations/ lifts.
Jogging is rare.
Approximate Jogging Frequency
Change Contactor After
(starts)
Table 1-2 Criteria for Recommended Gear Oil Replacement
Loading During Normal Operation
Light
Rating
Medium
Heavy
360
240
120
33 to 67%
67 to 100 %
0 to 33%
Average % of Rated Capacity
Change Gear Oil After
(hours)
Gear Oil - The H/C meter can be used in conjunction with the average load lifted by the hoist to estimate
when the gear oil should be changed. Refer to Table 1-2.
(2230010,2230020,2230040,2330010,2330020,2330040)
Count/Hour Meter
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For more information contact: Sievert Crane and Hoist, (708) 771-1600, [email protected], www.sievertcrane.com
