Chevrolet Low Cab Forward 2023 Manual page 275

274 Service and Maintenance
Air suspension s main support member
nut tightening torque
352 - 433 (35.9 - 44.2 kgf·m/260 -
320 lb·ft)
33. Rear Shock Absorber Pin Nuts : Tighten
the rear shock absorber pin nuts to the
specified torque after the first 1 600 km
(1,000 miles), thereafter every 20 000 km
(32,000 miles), or 6 months whichever
occurs first.
Rear shock absorber pin nut (upper and
lower) tightening torque
70 - 100 (7.14 - 10.2 kgf·m/
52 - 74 lb·ft)
34. Loose or Damaged Air Suspension Main
Support Member : Check the air suspension
main support member every 20 000 km
(32,000 miles) or 6 months whichever occurs
first.
Air suspension s U-bolt nut tightening torque
542 - 610 (55.3 - 62.2 kgf·m/400 - 450 lb·ft)
35. Damaged Air Spring : Check the air
spring every 20 000 km (32,000 miles),
or 6 months whichever occurs first.
36. Air Leaks from Air Suspension : Check air
leaks from the air suspension every
20 000 km (32,000 miles), or 6 months
whichever occurs first.
37. Loose or Damaged Air Suspension
Mounting : Check the air suspension
mounting after the first 1 600 km
(1,000 miles), thereafter every 32 000 km
(20,000 miles), or 6 months whichever
occurs first.
38. Air Spring Height : Check the air spring
height every 32 000 km (20,000 miles),
or 6 months whichever occurs first.
39. Function of Leveling Valve : Check the
function of leveling valve every 32 000 km
(20,000 miles), or 6 months whichever
occurs first.
40. Loose or Damaged Torque Rod : Check
the torque rod after the first 1 600 km
(1,000 miles), thereafter every 32 000 km
(20,000 miles), or 6 months whichever
occurs first.
41. Loose or Damaged Traverse Rod : Check
the traverse rod after the first 1 600 km
(1,000 miles), thereafter every 32 000 km
(20,000 miles), or 6 months whichever
occurs first.
42. Wheel Nut Torque : Check tires for
excessive or abnormal wear, or damage. Also
check tire inflation pressures and adjust.
Be sure wheels are not bent or cracked and
that wheel nuts have been tightened to the
specified torque after the first 160 km
(100 miles) and then every 16 000 km
(10,000 miles).
Wheel nut tightening torque
644 (475 lb·ft)