Installation & Operating Manual /DISC-O-FLEX/RLM,RLMK
RATHI TRANSPOWER PVT.LTD. Gaia Apex,S No 33/2D,Viman Nagar
R-II-D-03/02-09/20
Pune, 411014
Page 9
of 15
6.
Inspection & Periodic Maintenance
The disc coupling can be monitored under running condition as well as under idle condition.
Inspect the coupling once1 in 6 months in idle condition or whenever it is taken for
periodic maintenance.
During running condition, it is recommended to check the vibration and noise of bearings on
either side of the equipments to be under specified limits.
Special attention to be given to blade assembly (flexible element) whether is there any wavy
formation of the blade (“S” or “D” type waviness), this may result in weakening of the flexible
element under continuous operation. Also check the blade assembly individual elements of any
fracture or tearing of any blades. If found then it is recommended to replace the entire blade
assembly at one short. Slight bowing or “S”/”D” like distortion/waviness is not detrimental to
the operation of the unit.
Check the flexible elements, by visual inspection, for any signs of fatigue failure or cracking to
the washer anchoring points or general signs of fretting corrosion. Note that any cracking will
begin at the outermost edge of the outside blade. This means that, this inspection is still
possible without disturbing the element bolting.
It is recommended to replace cleveloc nut after being re-tightened 4 to 5 times.
To replace blade assembly, follow procedure as per section 4.1.
7.
Spare Management & Complaint Handling
7.1
Spare management
We recommend to store spare items as given below, inorder to have continuos operation
and to reduce down time due to failures.
Spare component list.(Fig.1)
Sr.No.
Part descriptions
Components/
part No.
Quantity
1
Element blade assembly
02
2 Nos
2
Coupling bolt
01 and/or 11
6 Nos
3
Hub ( I,II)
03 and/or 09
1 Nos
Don’t forget to mention hub type while giving spare order for hub and/or coupling
bolt
7.2
Complaint Handling
In case of any failure,for proper root cause, fill up Product Performance Datasheet (PPDS)
and provide us alongwith images/videos.
