Peterbilt 579 - Steering Shaft

STEERING SYSTEM
between the Maximum and
2. Bleed
the system if necessary.
Steering Shaft
Minimum level indicators.
The following
are common torque
Fluid Filter Replacement specications for most steering shafts.
• Torque on U–joint pinch bolt and
nut (7/16 in) 74–81 Nm (55 to 60
lb-ft), lubricated.
• Torque on Pitman arm clamp bolt
and nut (3/4 in): 406–433 Nm (300
to 320 lb-ft), lubricated.
• For off–highway vehicles, tighten
the U–bolts after the rst day or
two of operation. Then check
weekly.
5
CAUTION
Servicing the power steering system
without bleeding it of trapped air may
cause damage to the power steering
pump.
1. Replace both
uid and lter.
5-132
Y53-6047–2C (04/13)