Approved Lubricants for Crane Duty Helical Gearbox
The lubricant should consist of conventional mineral oils containing extreme pressure additives (generally on sulphur phosphorous basis). The lubricant should also contain anti foam additives, resist oxidization at high temperature and be non corrosive.
The oil viscosity recommended is given below :
|-10 to +150C||0 to 300C||+10 to +500C|
|ISO VG 100||ISO VG 220||ISO VG 320|
ISO VG; mm2 /S (cSt) at 400 C as per ISO
|WITHOUT OIL PUMP||WITH OIL PUMP|
|Upto 1500||Upto 1500||Above 1500|
|INDIAN OIL||Servomesh SP/EE 320||Servomesh SP/EE 220||Servomesh SP/EE 150|
|CASTROL||Alpha SP/EE 320||Alpha SP/EE 220||Alpha SP/EE 150|
|BHARAT PETROLEUM||Bharat Amocam 320||Bharat Amocam 220||Bharat Amocam 150|
|HINDUSTAN PERTOLEUM||Parthan EP 320||Parthan EP 220||Parthan EP 150|
|BALMER LAWRIE||Balmerol Gear Flux BM 320||Balmerol Gear Flux BM 220||Balmerol Gear Flux
|ESSO||SPARTAN EP 320||SPARTAN EP 220||SPARTAN EP 150|
|MOBIL||MOBILE GEAR 632||MOBILE GEAR 630||MOBILE GEAR 629|
|SHELL||OMLA-OEL 320||OMLA-OEL 220||OMLA-OEL 150|
|TAXACO||MERO PA 320||MERO PA 220||MERO PA 150|
AMBIENT TEMPERATURE & VENTILATION
Abnormal conditions of ambient temperature and/or ventilation status to be indicated for recommendation of suitable lubricant.
After mounting the Gear Unit it should be filled in with recommended lubricating oil through the inspection port. The first oil change should be made after 1,000 hours’ running or two months whichever is earlier. The subsequent changing should be done every 2,500 hours of running or one year, whichever is earlier. Oil should be drained off when it is still warm. The residues should be washed out by flushing oil and fresh oil should then be poured into the gear box. From time to time the oil level inside the Gear Box should be checked and this should be maintained upon the recommended level. The operating temperature should not be excessive. Temperature up to 90°C is harmless to any component.
The gearbox is fitted with a name plate giving details of power rating of the gearbox. Gearbox will withstand momentously overload. The reference number of the gearbox given on nameplate is required whenever any communication is to be made.
The gearboxes are delivered ready for operation but without oil filling.
Shaft extension and hollow output shafts are protected with a rust inhibitor. Before putting the gearbox into service, it should be filled in with recommended lubricating oil.
In order to get optimum performance, please follow operational manual for respective type of gearbox, supplied along with the gearbox.