Owner Service 19
51861 (Rev. 6/16/2006)
Figure 12. Tooth Replacement
HYDRAULIC HOSES AND FITTINGS
Hydraulic hoses are severely worked on a backhoe.
Examine them daily and replace if necessary. Hose
routing is very important. Make certain hoses can move
freely, without kinking, and cannot be damaged or cut
by backhoe action.
When tightening hoses and fittings, always use two
wrenches: one to hold hose and one to tighten fitting.
This will prevent hose from twisting and kinking.
Always back lock nut off and screw fitting all the way in
for fitting that use O-rings for sealing. Then hold in
position and tighten lock nut.
IMPORTANT
■ Fittings with O-rings and flange do not require
additional sealant, replace damaged O-rings.
LUBRICATION
Keep all persons away from operator control
area while performing adjustments, service, or
maintenance.
Do not let excess grease collect on or around parts,
particularly when operating in sandy areas. Figure 13
shows lubrication points for the backhoe.
It is recommended that all fittings be lubricated daily or
every eight hours of operation. In very wet or dry condi-
tions, lubricate every four hours of operation. Use an
SAE multi-purpose type grease for all locations shown
unless otherwise specified. Be sure to clean fitting thor-
oughly before using grease gun. One good pump of
most guns is sufficient.
Position backhoe for easy lubrication by placing boom
and dipper at 90° to each other with bucket cutting
edge vertical and teeth resting on ground. Lower stabi-
lizers to lubricate cylinders.
.
Figure 13. Lubrication Points

1

3

2

4

6

12 13 11

14

16

15

11

9

8

571. Bucket pivot
2. Bucket pivot
3. Bucket cylinder rod end
4. Bucket pivot
5. Bucket cylinder base end
6. Dipperstick pivot
7. Dipperstick cylinder rod end
8. Boom cylinder base end
9. Dipperstick cylinder base end
10. Boom cylinder rod end
11. Swing frame pivot (top and bottom)
12. Swing cylinder rod end (right and
left)
13. Boom pivot
14. Stabilizer pivot (right and left)
15. Stabilizer cylinder base end (right
and left)
16. Stabilizer cylinder rod end (right
and left)