Big Joe EZ30 Operation, Maintenance, Repair Parts List page 59

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 (8)
slightly so the cylinder can be removed.
9-3.4.2.Repair (Up to Serial # E2017219)
1. Secure the lift cylinder in a vise, clamping lightly
at the base of the cylinder.
2. Remove screw (8,
3. Unscrew gland nut (4) from body (5).
4. Remove wiper (2) and O-ring (3) from gland nut
(4).
5. Withdraw the cylinder rod (1) from body (5).
6. Remove guide ring (6) and seal ring (7) from rod
(1).
NOTE: If the cylinder body (5) or piston rod (1) are
damaged, the entire lift cylinder must be
replaced.
7. Replace guide ring (6), seal ring (7), wiper ring (2)
and O-ring (3).
8. Coat all parts with hydraulic oil
BL-EZ30-0815 - 07-28-2019
Figure 12-20) and
5-2.
Figure 9-2) and washers (5)
Figure 12-12) securing the
Figure 9-4) and support (9).
(Table 3-2).
9. Install new guide ring (6) and seal ring (7) on rod
(1).
10. Insert piston rod (1) into body (5).
11. Install wiper (2) and O-ring (3) in gland nut (4).
12. Install gland nut (4) in body (5).
13. Install support (9) and screw (8).
EZ30-16
Figure 9-4 Lift Cylinder
(Up to Serial # E2017219)
9-5