[terry]

Amazon.

[Archived]

just changed my fan gear box mobil shc 634 140 wt took one qt. stick shows little over the line.

[DON]

13k miles ago we changed the fluid in the Superior 90 degree gearbox w/1 qt of Amsoil SVO 75-90w severe gear oil

[ed]

How come my XL manual says SHC630?

[Archived]

Mine doesn’t have a dipstick, so I filled it half full with Amsoil 75w90 SVG.

Here is what the Superior manual says”

LUBRICATION

All gear drives are factory tested prior to shipment. They include the correct amount of oil unless specified by the customer to be shipped dry. Shaft bearings are splash lubricated and partially submerged in oil when the gear drive is mounted horizontally. After installation, remove the dipstick and verify correct oil level. If no dipstick is provided, determine level by any appropriate method. In general, the oil level should be approximately half the depth of the gear drive (to the parting line) for horizontal mounting, or to the shaft centerlines, if mounted other than horizontally. Prior to operation, make sure the gear drive contains the correct amount of oil. If under-filled or over-filled, damage to the gear drive or injury to personnel may result.

Approved Lubricants: • For gear drives operating in an ambient temp of 15° to 125° F, and oil temperatures to 200° F, Mobilube HD 80W-90 (or equivalent) is recommended. • For gear drives requiring start-up in an ambient temp below 15° F or operating continuously above 200° F, Mobilube synthetic SHC 75W-90 (or equivalent) is recommended.

Here’s a link: https://www.superiorgearbox.com/wp-content/uploads/bevelgearmanual.pdf