Isuzu NHR 4J Series Workshop Manual page 240

• Install A/C compressor drive belt and adjust belt
tension.
Check drive belts for wear or damage, and replace
with new ones as necessary. Check belts for tension,
and adjust as necessary.
• Push the middle of belts with a force of 10kg and
check each bolt for deflection.
• Standard deflection
6A1-105-1.tif
• A/C compressor pulley lock bolt loose, adjust belt
tension with adjuster's adjust bolt.
Idler Lock Nut Torque
8. Oil Pressure Switch Harness
• Connect the oil pressure switch harness connector.
7. Fuel Hose
• Connect the fuel feed hose and return hose then
tighten clip securely.
6. Glow Plug Harness
• Install the harness connector then tighten bolt
securely.
5. Engine Control Cable
1) Install the control wire to the engine control lever.
2) Hold accelerator lever in the fully closed position and
stretch the control cable in the direction indicated by
the arrow to remove any slack.
3) Tighten the accelerator cable bracket bolt.
6A1-105-2.tif
4JB1/4JB1T/4JB1TC/4JG2 – ENGINE 6A1 – 105
A/C compressor drive belt
27 (2.8/20)
mm (in)
Initial tension
8 - 12(0.31 - 0.47)
N∙m (kg∙m/lb∙ft)