Toro Groundsmaster 5900 Series Service Manual page 242

Steering Cylinder Disassembly
Steering Cylinder Assembly
Hydraulic System: Service and Repairs
(Figure
9. If necessary, remove barrel end ball joint (item 1) from barrel as follows:
A. Loosen jam nut (item 3).
B. Drive roll pin (item 6) from barrel.
C. Unscrew ball joint from barrel.
(Figure 124)
1. Use a complete repair kit when rebuilding the cylinder. Put a coating of clean
hydraulic oil on all new seals and O−rings.
2. Install new O−rings and seal to the piston and new O−ring, back−up ring, rod
seal and rod wiper to head.
3. Lubricate shaft with clean hydraulic oil. Slide head and piston onto piston rod.
4. Using a wrench on the piston rod flats to prevent the rod from turning, install
and tighten lock nut (item 8). Torque lock nut to 54 N·m (40 ft−lb).
5. Put a coating of clean hydraulic oil on all cylinder parts to ease assembly.
6. Carefully slide piston rod assembly into cylinder barrel taking care to not
damage seals or O−rings.
7. Secure head in barrel with internal collar.
8. If barrel end ball joint (item 2) was removed, install ball joint to barrel as
follows:
A. Thread ball joint into barrel so that roll pin hole in joint aligns with hole
in barrel.
B. Drive roll pin into aligned holes in barrel and ball joint.
C. Tighten jam nut.
g288166
9. If piston rod end ball joint was removed, fully retract piston rod and thread
ball joint onto rod so that center to center length is from 35.5 to 37.0 cm (14.0
to 14.6 in) (Figure
the front of the machine and tighten the clamp screw and lock nut.
124) (continued)
35.5 to 37.0 cm
(14.0 to 14.6 in)
Figure 125
125). Orient the head of the ball joint clamp screw toward
Page 5–142 Groundsmaster ® 5900 & 5910
16227SL Rev B