10
11
COMMISSIONING CHECK LIST (CEH)
1. I-Beam Flange width : Check actual width of beam, adjust washers to make equal running
clearance on all trolley wheels.
2. Dimensional clearance : Ensure that enough clearance is available for hoist & trolley
movement.
3. Power supply system : Ensure that ‘T’ section in case of trailing cable system or bus bar in
case of Akapp system is parallel in both axis w.r.t. Beam in straight or curved path. Trolley
pushers are designed correctly so that there is no pressure on trolley or current collector
during travel.
4. Trolley Limit Switch (Optional) : Proper actuators are provided on beam for the stopping of CT.
5. Oil level & fast ener s: Che ck levels ar e cor r ect & all f as t ene r s ar e correctly tightened.
6. Power supply Voltage : Check voltage in all 3 phases. R =Y=B= report under or over voltage.
7. Limit Switch : Check all limit switches like over hoisting, over lowering, right & left &
emergency Check the direction of motions w.r.t. Pendent buttons change phase sequence if
required. This is very important safety requirement.
8. Sufficiency of lift : Set the bottom Limit switch so that hook touches the floor & no further
Loosening of chain takes place. Set the top limit switch so that safe headroom is maintained
between hoist body and lower block.
9. Angular Loading : Check that equipment is not subjected to angular loading. Ensure that
equipment is installed at proper place proper hook approaches are used to prevent this.
10. Overloading, Extra heavy duty : Observe there is no overloading and excessive use of hoist.
11. Counter weight assembly : Ensure that counter weights are correctly assembled for balancing
of trolley bolts are properly locked & tightened.
12. Noise level : Observed that the is no abnormal noise in Hoist and travel motion.
13. Oiling : Apply oil to the chain for full length. Ensure free movement.
14. Name plate data: Note hoist, motor nos. & record them on Instruction manual for future use.
15. Instruction Manual: Read instruction manual of each product carefully & act accordingly.
16. Abnormal factors : Excessive dust, temp, humidity, chemical fumes, leakages etc. Report them.
17. Brake setting : Ensure that brake operation is not sluggish & load is not slipping. This is to
certify that equipment is commissioned on and found satisfactory for use.
Hercules Hoists Limited ©2020
Note :- Due to continuous development and improvement specification listed above may be changed without notice
Indef CHAIN ELECTRIC HOIST
Hercules Hoists Limited ©2020
Note :- Due to continuous development and improvement specification listed above may be changed without notice
OPERATING & MAINTENCE INSTRUCTION
COMMISSIONING & OPERATION
Connect mains incoming Supply (415V, 3 phase, 50 Hz), Press hoisting (T) push button, if load
hook does not move in upward direction as per marking on push button, then switch off mains
and interchange two phase of mains supply. An overload bimetallic relay is provided to protect
hoist motor against overloads
LIMIT SWITCHES
Limit switches are provided for both hoisting and lowering. These trip the supply in events of
accidental over hoisting or over-lowering. These are safety devices and hence it is not recommended
to use the hoist always in its extreme positions.
CAUTION
DO NOT MAKE ANY CHANGE IN CIRCUIT, ANY RECONNECTION MUST BE DONE AS PER THE CIRCUIT
DIAGRAM ONLY
Electric hoists are designed for class II operation and the hoist motor is rated for 40% intermittent
duty. This means In a 10 minute cycle the hoist should run for a total period of 4 minutes.
For Satisfactory and lasting service from hoist, customer is requested to follow the 40% duty and
the preventive maintenance instructions as given below :
MAINTENANCE
a) Load chain should be kept well lubricated at all times. Lubricate the chain
with any medium viscosity oil on no load condition. Then run the hoist .
(No load conditions again) for some time to ensure that oil has penetrated
the link joints. (see sketch)
b) Put few drops of oil regularly on all moving parts of limit switch to have them
always efficient to keep away breakdowns
c} we recommend NEBULA EP or equivalent grease for gears and Norva 275 or equivalent
grease for bearings.
TESTING SERVICES
As per factory act, all lifting equipment have to be tested every six months and need to be certified
“OPERATION WORTHY’ by a competent person, This service is extended to all our customers at a
nominal charge.
PROCEDURE FOR MOTOR ASSEMBLING
1. Clean the braking surface of chain guide (P No.4) and stator body free of accumulated dust.
2. Adjust the distance A (see sketch 2) to 37.0 +0.0 this can be done by 0.3 selecting correct No.
of washers (P. N 94a and P. N. 94b)
3. Fix the brake drum (P. N. 94) along with washers (P. N. 94a, 94b) to Rotor P. N. 80. 1.5 mm thick
washer (P. No. 94b) to be always provided below part nos. 98 & 97 as shown in sketch 3 to
avoid Elongation of holes on brake drum.
Hercules Hoists Limited ©2020
Note :- Due to continuous development and improvement specification listed above may be changed without notice
Indef CHAIN ELECTRIC HOIST
