Big Joe EZ30, Operation, Maintenance, Repair Parts List

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9-2 BL-EZ30-0815 - 07-28-2019
CAUTION: Hydraulic oil can damage parts. Wipe off
any oil immediately. Provide a container
under the line or fitting before discon-
necting.
4. Refer to Figure 9-2 and remove leaking line or fit-
ting and replace it with a new line or fitting. Check
level of hydraulic oil. With lift carriage fully low-
ered, fill reservoir with hydraulic oil to 1 inch below
opening. Use hydraulic oil listed in
Table 3-2 .
5. Turn on the key switch (20, Figure 12-20 ) and
emergency disconnect (17).
6. Operate the lift and lower buttons to refill the
cylinder and lines with hydraulic oil.
7. Check level of hydraulic oil. Hydraulic oil must be
1 inch below opening. If required, add hydraulic
oil to bring to proper level. Use hydraulic oil listed
in
Table 3-2 .
8. Install the upper compartment cover as described
in paragraph
5-2.
9-2. HYDRAULIC AND ELECTRICAL ASSEMBLY
REMOVAL
The hydraulic system and electrical system can be
removed as an assembly to provide additional clear-
ance for various maintenance procedures.
WARNING: When forks are raised, pressure exists in
the hydraulic system lines and fittings. To
ensure release of pressure, forks must
be fully lowered and the batteries discon-
nected before performing any mainte-
nance on the hydraulic system.
9-2.1. Removal
1. Lower forks fully.
2. Turn off the key switch (20, Figure 12-20 ) and
emergency disconnect (17).
3. Remove the upper compartment cover (5, Figure
9-1 ) as described in paragraph 5-2.
4. Remove four screws (1, Figure 9-1 ), four washers
(2) and move assembly away from frame.
9-2.2. Installation
1. Position assembly on frame and secure with four
screws (1,
Figure 9-1 ), and four washers (2).
2. Turn on the key switch (20, Figure 12-20 ) and
emergency disconnect (17).
3. Install the upper compartment cover as described
in paragraph
5-2.
9-3. HYDRAULIC PUMP, MOTOR, AND RESER-
VOIR ASSY
The hydraulic pump/motor assembly can be disas-
sembled and repaired. However, a defective pump,
valve or motor requires replacement of that compo-
nent.
WARNING: When forks are raised, pressure exists in
the hydraulic system lines and fittings. To
ensure release of pressure, forks must
be fully lowered and the batteries discon-
nected before performing any mainte-
nance on the hydraulic system.
9-3.1. Removal
1. Lower forks fully.
2. Turn off the key switch (20, Figure 12-20 ) and
emergency disconnect (17).
3. Remove the hydraulic and electrical assembly as
described in paragraph
9-2.
4. Tag and disconnect electrical leads from solenoid
(2,
Figure 9-3 ) and motor (3)
NOTE: The reservoir and hose will be filled with
hydraulic oil. Place a container under the
pump assembly to catch any hydraulic oil.
5. Remove bolt (7, Figure 9-2 ) and washers (5) and
disconnect hose (8) pump and motor (9).
6. Remove two screws (1) and remove pump and
motor (9).
9-3.2. Disassembly and Reassembly
1. Remove the hydraulic pump/motor assembly as
described in paragraph
9-3.1.
2. Refer to Figure 9-3 for disassembly and reassem-
bly.
9-3.3. Installation
1. Position pump and motor (9, Figure 9-2 ) on
bracket and secure with two screws (1).
2. Connect electrical leads to motor (3, Figure 9-3 )
and solenoid (2).
3. Reconnect hose (8, Figure 9-2 ) to pump/motor
assembly (9) with two washers (5) and bolt (7).
4. Fill the hydraulic reservoir. Hydraulic oil must be 1
inch below opening. If required, add hydraulic oil
to bring to proper level. Use hydraulic oil listed in
Table 3-2 .
5. Turn on the key switch (20, Figure 12-20 ) and
emergency disconnect (17).