Big Lift CB22, Operation, Maintenance And Parts Manual

Page: 43 / 168

BL-CB22-1214 - 04-11-2019 7-1
SECTION 7
TRANSMISSION, DRIVE WHEEL, LOAD WHEEL
7-1. Drive Wheel.
1. Turn off the key switch (12, Figure 12-29 or 12,
Figure 12-30 ) and disconnect the batteries.
2. Remove the compartment covers as described in
paragraph
5-3.
3. Loosen but do not remove the five nuts (15, Fig-
ure 7-1 ).
4. Jack up the truck so the drive wheel is off the
ground; then securely block the truck to prevent
movement.
5. Remove the five nuts (15), five washers (14) and
drive wheel (13) from the transmission (12).
6. Install new drive wheel in reverse order of
removal.
7. Install the compartment covers as described in
paragraph
5-3.
8. Reconnect the batteries and turn on the keyswitch
(12,
Figure 12-29 or 12, Figure 12-30 ).
7-2. Transmission.
1. Remove the drive wheel (13) as described in
paragraph
7-1.
2. Remove the brake (2, Figure 7-1 ) as described in
paragraph 6-1.1.
3. Remove the steering arm as described in para-
graph
5-2.2.
4. Note routing of cables to ensure proper installa-
tion.
5. Tag the cables connected to the drive motor; then
disconnect these cables from the drive motor.
6. Remove three screws (26, Figure 12-1 ) and three
lock washers (27) to free brake plate (17) from
motor (3,
Figure 7-1 )
7. Support the transmission (12, Figure 7-1 ) and
remove the six screws (7), six lock washers (8)
and six flat washers (9).
8. Slowly lower the transmission out the bottom of
the frame.
9. Install new transmission by reversing the steps
above.
7-3. Load Wheel.
7-3.1. Removal
1. Turn off the key switch (12, Figure 12-29 or 12,
Figure 12-30 ) and disconnect the batteries.
2. Block the drive wheel to prevent the truck from
rolling.
3. Jack up the truck to raise the load wheel off the
floor. Securely block the truck in the raised posi-
tion.
4. Remove three screws (1, Figure 7-2 ) and cover
(2).
5. Remove two screws (3), two lock washers (4), two
flat washers (5) and retainer (6).
6. Remove load wheel (7).
7. Remove bearings (13) from load wheel (7).
NOTE: Inspect the load wheel assembly. If the load
wheel is worn within 1/8" of the metal sleeve,
or is cracked or damaged, replace the entire
load wheel and bearing assembly. Big Lift
LLC recommends that both load wheel
assemblies be replaced at the same time.
This ensures level and safe operation of the
lift truck.
7-3.2. Load Wheel Installation
1. Install bearings (13, Figure 7-2 ) in load wheel (7).
2. Position load wheel (7) on spindle.
3. Remove retainer (6) and secure with two screws
(3), two lock washers (4) and two flat washers (5).
4. Install cover (2) and secure with three screws (1).
5. Remove blocking from under the truck and lower
to the ground.
6. Reconnect the batteries and turn on the keyswitch
(12,
Figure 12-29 or 12, Figure 12-30 ).