Big Lift CB22, Инструкция по эксплуатации, техническому обслуживанию и запасным частям

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9-8 BL-CB22-1214 - 04-11-2019
9-4. Lift Cylinder (TRIMAST Free Lift)
9-4.1. Removal
1. Fully lower the lift carriage.
2. Turn off the key switch (12, Figure 12-29 or 12,
Figure 12-30 ) and disconnect the batteries.
WARNING: Before attempting any replacement,
make certain power is disconnected.
3. Using another lift truck or suitable jack, raise lift
carriage far enough to remove pressure on the
free lift cylinder
4. Remove cotter pin and clevis pin connecting the
lift chain to the anchor at cylinder (8,
Figure 9-6 ).
5. Remove chains from sheaves (7).
6. Remove screw (1), lock washer (2), flat washer
(3), bracket (4) and ram head (5) from cylinder (8)
CAUTION: Hydraulic oil can damage parts. Wipe off
any oil immediately. Provide a container
under the line or fitting before discon-
necting.
7. Disconnect the tube (9, Figure 9-3 ) from the bot-
tom of lift cylinder.
8. Support cylinder (8, Figure 9-6 ) and remove two
screws (15), two lock washers (16) and two flat
washers (17).
9. Raise lift cylinder assembly up and out of truck.
9-4.2. Repair
CAUTION: To prevent damage, use proper pipe
clamp vise. The cylinder will be distorted
if the vise is tightened too much.
1. Secure the lift cylinder in a vise, clamping lightly
at the base of the cylinder.
2. Remove gland nut (4, Figure 9-7 ).
3. Remove wiper (1), collar (2), packing (3) and O-
ring (5) from gland nut (4).
4. Pull out piston rod (6).
5. Remove ring (7) from piston rod (6).
6. Coat all parts with hydraulic oil ( Table 3-2 ).
7. Install ring (7) on piston rod (6).
8. Insert rod (6) in cylinder tube (8).
9. Install O-ring (5), wiper (1), collar (2), and packing
(3) on gland nut (4).
10. Install gland nut (4) in cylinder tube (8).
9-4.3. Installation
1. Position cylinder (8, Figure 9-6 ) on inner mast
(23) and secure with two screws (15), two lock
washers (16) and two flat washers (17).
2. Reconnect the tube (9, Figure 9-3 ) to the bottom
of the cylinder.
3. Position bracket (4, Figure 9-6 ) and ram head (5)
on cylinder (8) and secure with screw (1), lock
washer (2), and washer (3).
4. Position lift chains over sheave, (7) and secure lift
chain to the anchor at cylinder (8) with clevis pin
and cotter pin.
5. Adjust the chains according to paragraph 8-2.
6. Fill the hydraulic reservoir. Use hydraulic oil listed
in
Table 3-2 .
7. Reconnect the batteries and turn on the keyswitch
(12,
Figure 12-29 or 12, Figure 12-30 ).
8. Operate the lift and lower buttons to refill the
cylinder and lines with hydraulic oil.
9. Check level of hydraulic oil. If required, add
hydraulic oil to bring to proper level. Use hydraulic
oil listed in
Table 3-2 .