TM 5-3805-281-10
Maintenance--Every 500 Hours
GREASE SWING BEARING GEAR
CAUTION: Prevent possible injury from
unexpected machine movement if controls are
moved by another person. Lubricating swing
bearing gear and rotating the upperstructure
must be done by one person.
1. Remove access cover (A) to swing gear.
Located In Tool Box
A--Access Cover
CED,TX14740,6100
1923APR981/2
2. Grease must be 13--25 mm (1/2--1 in.) (B) deep
measured from the bottom of the ring gear. The grease
must also be free of contamination by dirt and water.
If the grease is contaminated, remove grease and
replace with clean grease.
IMPORTANT: If water or mud is found in swing gear
area, see Operating in Water and Mud in
Operating the Machine chapter.
3. Add grease as required (approximately 0.113 kg (1/4
lb) every 90). (See Fuels and Lubricants chapter.)
B--Grease Depth
IMPORTANT: Excessive grease can damage the
swing gearbox seal.
4. Remove excessive grease that extrudes over the top of
the swing drive pinion.
5. Install access cover.
CED,TX14740,6100
1923APR982/2