Steering Cylinder Service
6
11
14
1
8
3
12
17
7
5
2
16
4
15
8
9
10
13
Figure 103
1.
2.
3.
4.
5.
6.
Front shaft (1”)
Rear shaft (1.250”)
Front head (1”)
Rear head (1.250”)
Roll pin
7.
8.
9.
10. Rear head seal
11. Front head seal
12. Wear ring
O--ring
External collar (2 used)
Piston
13. Dust seal
14. Barrel
15. Piston seal
16. Rear head O--ring/backup ring
17. Front head O--ring/backup ring
Dust seal
Disassembly (Fig. 103)
Remove oil from steering cylinder into a drain pan by
slowly pumping the cylinder shaft. Plug both ports and
clean the outside of the cylinder.
5. Grasp end of front shaft and use a twisting and pull-
ingmotiontocarefully extracttherearshaft,piston,front
shaft and front head assembly from the barrel.
1.
6. Remove cylinder from vise.
IMPORTANT: Prevent damage when clamping the
steeringcylinderintoavise;clamponthebarrelcle-
vis ONLY. Do not close vise on barrel.
IMPORTANT: Whenremovingrollpinfromfrontand
rear shafts, make sure that shaft surfaces are not
damaged.
2.
ingonthebarrelclevis.Useofavisewithsoftjawsisrec-
ommended.
Mount steering cylinder securely in a vise by clamp-
7. Remove and discard roll pin (item 5) that secures
front shaft to rear shaft. Then remove rear shaft (item 2),
piston (item 9) and front head (item 3) from front shaft.
3.
nal collars from both ends of barrel.
Using a spanner wrench, loosen and remove exter-
8. Remove and discard seals, O--rings and wear ring
from piston and heads.
4.
the rear head from the barrel and rear shaft.
Use a twisting and pulling motion to carefully extract
Hydraulic System
Page 4 -- 114
Groundsmaster 4300--D
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