Big Joe J1-192, Руководство по ремонту и запасным частям

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BL-J1-192-0315 - 11-19-2019 8-3
8-2.3. Installation
1. Position pump/motor assembly on reservoir and
install four screws, four lock washers and four flat
washers.
2. Reconnect hose to pump/motor assembly.
3. Connect electrical leads to motor and solenoid of
pump/motor assembly.
4. Fill the hydraulic reservoir. Use hydraulic oil listed
in
Table 2-2 .
5. Disengage the emergency power disconnect
switch and turn on key switch.
6. Operate the lift and lower buttons to refill the
cylinder and lines with hydraulic oil.
7. Check level of hydraulic oil. If required, add
hydraulic oil to bring to proper level. Use hydraulic
oil listed in
Table 2-2 .
8. Install the compartment cover as described in
paragraph
4-2.
8-3. Lift Cylinder (Full Free Lift)
8-3.1. Removal
1. With the vehicle wheels securely blocked, raise
the platform approximately three feet and position
blocks or strong supports under Platform.
2. Lower Platform onto the support. Check that
arrangement is secure before proceeding.
3. Engage the emergency power disconnect switch
and turn off key switch.
4. Remove the compartment cover as described in
paragraph
4-2.
WARNING: Before attempting any replacement,
make certain power is disconnected.
CAUTION: Hydraulic oil can damage parts. Wipe off
any oil immediately. Provide a container
under the line or fitting before discon-
necting.
5. Remove the lift chain as described in paragraph
7-4.
6. Remove bolt (12, Figure 8-5 ), lock washer (9), flat
washer (10), sheave (13) and bushing (14).
7. Remove screw (8), lock washer (9), flat washer
(10), angle (11), bracket (34) and header (15)
from cylinder (18).
8. Disconnect the hose (13, Figure 8-3 ) from tube
(14).
9. Remove screw (16), lock washer (17), flat washer
(18) and disconnect tube (14) from connector
(15).
10. Remove connector (15), two washers (5) and
relief valve (6) from cylinder (25).
WARNING: Support lift cylinder before performing
the following steps to prevent cylinder
from falling.
11. Remove two bolts (30, Figure 8-5 ), two lock wash-
ers (9), two flat washers (10).
12. Raise lift cylinder assembly (18) up and out of
vehicle.
8-3.2. 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 8-2 ).
3. Remove wiper ring (1), backup ring (2), packing
(3) and O-ring (5) from gland nut (4).
4. Pull out piston rod (6).
5. Remove screw (9) and piston (7) from rod (6).
6. Remove ring (8) from piston (7).
7. Coat all parts with hydraulic oil ( Table 2-2 ).
8. Install ring (8) on piston (7).
9. Install piston (7) on rod (6) and secure with screw
(9).
10. Insert rod (7) in cylinder tube (10).
11. Install wiper ring (1), backup ring (2), packing (3)
and O-ring (5) on gland nut (4).
12. Install gland nut (4) in cylinder tube (10).
8-3.3. Installation
1. Position the cylinder (18, Figure 8-5 ) in the mast
(33).
2. Install two bolts (30), two lock washers (9), and
two flat washers (10).
3. Install relief valve (6, Figure 8-3 ), two washers (5)
and connector on cylinder (25).