Adjustment; Lift Cylinder; Removal; Figure 3-17: Steering Cylinder Assembly - Upright SL30SL Service & Parts Manual

Section
3.14
5. Lubricate and install new rod seals and static O-
rings on the headcaps.
6. Lubricate and install new rod wipers in the head-
caps.
7. Install headcap in the barrel tube and tighten until
the mounting holes are in-line.
Note: Headcaps must be reinstalled in the same
end from which they were removed.
8. Install the fittings in the ends of the cylinder.
9. Position the cylinder assembly in the chassis and
install the capscrews and locknuts, but DO NOT
tighten.
10. Tighten the nut and bolt in front of the cylinder
that goes through the frame and then tighten the
cylinder mounting capscrews.
11. Install the cylinder rod ends.
12. Connect the hose assemblies to the fittings.
13. Operate the steering circuit several times
throughout its' entire range of travel to expel
trapped air and check for leaks.
1. No. 2 Shaft
2. Headcap (2)
3. Rod Wiper (2)
4. Rod Seal (2)
5. Static O-ring (2)

Figure 3-17: Steering Cylinder Assembly

3-16
M
AINTENANCE
6. Cylinder Barrel
7. Piston
8. Piston Seal
9. Piston Static O-
ring
10. No. 1 Shaft

Adjustment

1. Disconnect the cylinder rod ends (if connected).
2. Operate steering so that both ends of the cylinder
rod are equal length (.8 mm, ±1/32 inch).
3. Position both tires so they are parallel with the
frame and with each other.
4. Adjust the rod ends until they align with the holes
on the steering linkage bars.
5. Reinstall the bolts through the steering linkage
bars and rod ends. Tighten the jam nuts on the
rod ends and all hardware.
6. When properly adjusted, the wheels must turn
the same amount in each direction.
3.14 L C
IFT YLINDER
Note: DO NOT support or raise the front of the
platform during any maintenance operation as
this might result in damage to the tension
members.

Removal

1. Raise and block the front of the elevating assem-
bly approximately 305 mm (12 inches) above the
chassis. Support with a jackstand with a mini-
mum rating of 1814 kg (4000 lbs.).
2. Open Emergency Lowering Valve to be sure all
pressure is off the Lift Cylinder.
3. Remove and cap both hoses and fittings.
4. Support the Lift Cylinder to prevent falling.
5. Remove the set screw from the end of the cylin-
der rod.
6. Remove the retaining ring from the upper cylinder
pin. Remove the upper cylinder pin by tapping out
using a soft punch.
7. Remove the retaining bolt from the lower cylinder
pin and remove the pin using a soft punch.
8. Remove the cylinder by sliding it out of the front
of the machine.
(F 3-18)
IGURE
SL26/30SL Work Platform