4.1 Servicing
Routine Fifth Wheel Maintenance
Every 10,000km (or 1 month)
1. Uncouple tractor, clean the fifth wheel mechanism, rubbing
plate and kingpin. Inspect the fifth wheel for damage and
defects.
2. Regrease, with clean grease, all points a to h as shown in Figure
11.
Every 50,000km (or 6 months)
1. Degrease the fifth wheel rubbing plate and kingpin.
2. Check the kingpin for wear (use gauge 59006421).
3. Check the fifth wheel for wear. If dimension “A” (see Figure 12) is
less than 20.25mm a replacement jaw kit is required.
4. If the parts are correct, carry out 10,000km maintenance
procedure.
a - Lockbar pivot
b - Adjuster screw
c - Kingpin contact area
d - Fifth wheel top plate
e - Mounting bracket lube point 150CI only
f - Mounting bracket contact area 150SP only
g - Handle pivot
h - Lockbar “track”
3000 Fifth Wheel Instruction Manual
8
S E R V I C I N G A N D T E S T I N G
English
Table 1 - Part numbers for tools required in servicing
Figure 11 - Labelled diagram of fifth wheel parts
Kingpin test unit 59004124
Kingpin gauge 59006421
Pivot Bolt Puller 59002231
