Global Machinery Company Sierra 1999 - Manual (Page 323)

yellow blue
6-25
Rear Axle
When to Check Lubricant
Refer to the Maintenance Schedule to determine how
often to check the lubricant. See “Scheduled
Maintenance Services” in the Index.
How to Check Lubricant
1500 Series shown, 2500 Series similar
The proper level for the 1500 Series is from 5/8 inch
to 1 5/8 inch (15 mm to 40 mm) below the filler plug.
The proper level for the 2500 Series is from 0 to
3/8 inch (0 to 10 mm) below the filler plug. Add only
enough fluid to reach the proper level.
What to Use
Refer to the Maintenance Schedule to determine what
kind of lubricant to use. See “Recommended Fluids and
Lubricants” in the Index.
Four - Wheel Drive
Most lubricant checks in this section also apply to
four
- wheel - drive vehicles. However, they have two
additional systems that need lubrication.