Lift Cylinder (Single Stage); Lift Cylinder And Hydraulic System (Single Stage Mast); 5-7.1 Removal; 5-7.2 Installation - Big Joe M22 Installation, Operation, Maintenance & Repair Parts

Manually propelled, semi-electric lift truck
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5-7. LIFT CYLINDER (SINGLE STAGE).

5-7.1. Removal
1.
Chock all wheels and engage the floor lock.
2.
Raise the forks approximately three feet from the
floor and position blocks or other strong supports
under the lift carriage. Keep supports in place
during the entire procedure.
3.
Lower the carriage onto the supports. Check that
the supports are supporting the carriage.
WARNING: Before attempting any repair, make cer-
tain power is disconnected by disconnect-
ing the battery.
WARNING: Before disconnecting any hydraulic lines,
check that the system is not under pres-
sure.
4.
Remove return hose from the top of cylinder.
5.
Loosen pressure hose at the bottom of lift cylinder
and manually push the ram down as far as possi-
ble. The chain will become slack and need not be
removed.
6.
Disconnect pressure hose from the bottom cylin-
der.
DY_0006
Figure 5-3 Lift Cylinder and Hydraulic System (Single Stage Mast)
5-4
7.
Remove connector and packing washer from cyl-
inder.
8.
Lift chain from sheave and set it aside.
9.
Lift ram head from cylinder.
10. Remove screws, lock washers, flat washers that
secure the lift cylinder bracket to the frame and
remove the cylinder.
5-7.2. Installation
1.
Position the lift cylinder on the mast and secure
with screws, flat washers, lock washers.
2.
Position ram head on the lift cylinder.
3.
Position lift chain on sheave.
4.
Install connector and packing washer on cylinder.
5.
Connect pressure hose to the bottom of cylinder.
6.
Connect return hose to the top of cylinder.
7.
Fill the hydraulic reservoir. Use hydraulic oil listed
in
Table
3-2.
8.
Reconnect the battery and turn on the truck.
9.
Operate the lift and lower to refill the cylinder and
lines with hydraulic oil.
10. Check level of hydraulic oil to bring to proper
level. Use hydraulic oil listed in
11. Adjust the lift chains according to paragraph
BL-M22EP-0119 - 01-11-2019
Table
3-2.
5-3.
DY_0003

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