Isuzu N-Series. Service manual - part 7

POWER TAKE OFF 00-23

4. If the cable is adjusted in the aforementioned meth-

od and the amount of spool extrusion cannot be
obtained, repeat Items (2) and (3) and adjust the
cable so that the amount of spool extrusion will
reach a specified extrusion dimension.

5. If a spool extrusion dimension can be obtained,

tighten the cable holder tightening bolt and lock nut
at a specified torque in this order.

Tighten:

• Cable holder bolt to 23 N

⋅m (2.3 kg⋅m / 17 lb⋅ft)

• Lock nut to 21 N

⋅m (2.1 kg⋅m / 15 lb⋅ft)

Operability of the dump lever, rise of the body (car-
go deck), and inspection and adjustment of the rise
and fall reference times

1. Check that the engine revolution per minute is

1,250 rpm and the rise and fall operations of the
body (cargo deck) are performed within the follow-
ing reference times.

2. Inspection of the dump lever control force and

moderation

• Inspect that the operation of the dump lever can

lightly and smoothly be performed.

Basic Value (On the Dump Lever Knob): 10 kgf (98 N)

• When the dump lever is in the “Up” and “Down”

positions, inspect that the lock operation can be
performed without a feeling of physical disor-
der.

3. After having repeated the “Up” and “Down” posi-

tions of the dump lever and slowly set them to the
“Down” position as much as possible, inspect the
shaft (driving shaft) between the PTO and oil
pump.

• Inspect that the shaft (driving shaft) rotates for-

ward or backward.
If the shaft slowly rotates backward, it is nor-
mal.

Legend

1. PTO
2. Counterclockwise rotation
3. Clockwise rotation

NPA0049E

NPA0050E

Legend

1. Bolt
2. Lock nut
3. Special nut

Rise Time And Fall Time

Sec.

Rise

Fall

Single Cab

within 20

within 20

Double Cab

within 25

NPA0051E

00-24 POWER TAKE OFF

Cable Adjustment (Dump Lever Side)

If a defect is found as a result of the inspection of the
aforementioned items (1) to (3), adjust the control cable
in the dump lever portion inside the cab according to the
following procedure.

1. Set the dump lever to the “Down” position.
2. Loosen the lock nut of the control cable and adjust

the cable as follows:

When the rise time is improper or when the shaft is in-
verted at “Down” time or when the dump lever is hard to
lock at “Down” time, move the inner cable to Direction
(1) of the drawing.
When the fall time is improper or when the dump lever is
hard to lock at “Up” time or when the shaft rotates for-
ward at “Down” time, move the inner cable to Direction
(2) of the drawing.

Notice:

If the cable is adjusted on the dump lever side, be sure
to re-inspect the amount of spool extrusion.

3. After adjustment, tighten the lock nut at a specified

torque.

Tighten:

Lock nut to 6 N

⋅m (0.6 kg⋅m / 52 lb⋅in)

Notes on Replacing and Adjusting Control
Cable for Three-rotation Dump Truck

1. The control cable between the “Dump lever and se-

lector” of the three-rotation dump truck is manufac-
tured by ISUZU MOTORS LIMTED.
This control cable is sent for (at replacement) in the
Isuzu Motors Service Network, and because the
selector need be disassembled, assembled, and
adjusted, request a service network (SS store) of a
body manufacturer of the replacement work.

2. The selector main unit for the three-rotation dump

truck and the control cable between the “Selector
and PTO (with oil pump) are manufactured by a
body manufacturer.
Request a service network (SS store) of a body
manufacturer of the replacement work of the selec-
tor main unit and the aforementioned control cable.

3. First adjust the control cable at the dump lever bot-

tom, adjust the control cable in the cable holder
portion of the PTO (oil pump portion), and check
that the shaft (driving shaft) of the oil pump will not
rotate concurrently. Then because the adjustment
of the selector main unit is necessary (only at down
lever down, the ejection direction of the cargo deck
can be selected. If this adjustment is improper, the
cargo deck may fall off.), request a service network
of a body manufacturer of the adjustment.

Legend

1. Oil pump
2. PTO
3. Direction of forward rotation
4. Direction of backward rotation
5. Shaft (drive shaft)

Legend

1. Squeeze
2. Pull out
3. Dump cable
4. Dump lever
5. Loosen

NPA0052E

Legend

1. Oil pump
2. Spool extrusion

NPA0053E

POWER TAKE OFF 00-25

Control Cable Rough Layout Drawing for Three-Rotation Dump Truck

Legend

1. Dump lever

6. Control cable (between selector and oil pump)

2. Cab

7. Selector

3. Dump (ejection) position switching lever

8. Frame

4. PTO

9. Isuzu control cable

5. Oil pump

10. Transmission

NPA0054E

00-26 POWER TAKE OFF

Control Cable Adjustment for Three-rotation Dump Truck

Replacement

1. The control cable between the “Dump lever and se-

lector” of the three-rotation dump truck is manufac-
tured by Isuzu Motors Ltd. This control cable is
sent for (at replacement) in the Isuzu Motors Ser-
vice Network, and because the selector need be
disassembled, assembled, and adjusted, request a
service network (SS store) of a body manufacturer
of the replacement work.

2. The selector main unit for the three-rotation dump

truck and the control cable between the “Selector

and PTO (with oil pump) are manufactured by a
body manufacturer. Request a service network
(SS store) of a body manufacturer of the replace-
ment work of the selector main unit and the afore-
mentioned control cable.

Legend

1. Control cable

6. Spool

2. Oil pump

7. Cable connector

3. PTO

8. Lock button

4. Stopper adapter

9. Dump lever

5. Inner rod assembly

NPA0055E