9-3.4 Lift Cylinder; 9-3.4.1 Removal; 9-3.4.2 Repair - Big Joe E30 Operation, Maintenance And Parts Manual

9-3.4. Lift Cylinder
9-3.4.1.Removal
1. Lower forks fully.
2. Turn on the key switch (20,
emergency disconnect (17).
3. Remove the upper compartment covers as
described in paragraph
4. Ensure that hydraulic pressure has been relieved
from the lift circuit. Disconnect the hydraulic line
from the lift cylinder.
5. Remove screw (6,
and disconnect hose (8) from cylinder (2).
6. Remove screw (12,
cylinder to frame.
WARNING: Frame is heavy. Use care while securing
and lifting in order to prevent injury.
7. With suitable hoist, carefully raise frame slightly
so the cylinder can be removed.
9-3.4.2.Repair
1. Secure the lift cylinder in a vise, clamping lightly
at the base of the cylinder.
2. Unscrew gland nut from body.
3. Remove wiper and O-ring from gland nut.
4. Withdraw the cylinder rod from body.
5. Remove guide ring and seal ring from rod.
NOTE: If the cylinder body or piston rod are dam-
aged, the entire lift cylinder must be replaced.
6. Replace guide ring, seal ring, wiper ring and O-
ring.
7. Coat all parts with hydraulic oil
8. Install new guide ring and seal ring on rod.
9. Insert piston rod into body.
10. Install wiper and O-ring in gland nut.
11. Install gland nut in body.
BL-E30-0515 - 03-01-2018
Figure 12-18) and
5-2.
Figure 9-2) and washers (5)
Figure 12-10) securing the
(Table 3-2).
R8030
Figure 9-4 Lift Cylinder
9-5