Chapter 5
Periodic inspections of the trailer
5.14
PRONAR T672ECO
5.11 CHECKING THE CLEARANCE OF THE AXLE
BEARINGS
• Raise the wheel with a jack.
• Turn the wheel slowly in two direc-
tions. Check that the movement is
smooth and the wheel rotates without
excessive resistance and jamming.
• Turn the wheel so that it rotates very
quickly, check that the bearing does
not make any unusual sounds.
• Try to feel looseness by moving the
wheel.
• Repeat for each wheel separately, re-
membering that the jack must be on
the opposite side of the wedges.
• If looseness is felt, adjust the
bearings. Unnatural sounds coming
from the bearing may be symptoms
of excessive wear, dirt or damage.
In this case, the bearing together
with the sealing rings should be re-
placed or cleaned and re greased.
When checking bearings, make sure
that any noticeable looseness comes
from the bearings, not the suspension
system (e.g. looseness on the spring
pins, etc.).
• Check the technical condition of the
hub cover, replace if necessary.
I.3.4.622.12.1.EN
ADVICE
Damaged hub cover or lack thereof will cause the
penetration of dirt and moisture into the hub, which
will result in much faster wear of bearings and hub
seals.
Bearing life depends on trailer operating conditions,
load, vehicle speed and lubrication conditions.
526-I.10-1
Figure 5.9
Clearance inspection
Summary of Contents for T672ECO
Page 3: ...INTRODUCTION ...
Page 10: ...Introduction 8 PRONAR T672ECO ...
Page 11: ......
Page 12: ......
Page 15: ......
Page 16: ......
Page 17: ...GENERAL CHAPTER 1 ...
Page 32: ...SAFETY OF USE CHAPTER 2 ...
Page 51: ...Chapter 2 Safety of use 2 20 PRONAR T672ECO ...
Page 52: ...CONSTRUCTION AND PRINCIPLE OF OPERATION CHAPTER 3 ...
Page 71: ...RULES OF USE CHAPTER 4 ...
Page 101: ...PERIODIC INSPECTIONS OF THE TRAILER CHAPTER 5 ...
Page 131: ...TECHNICAL SUPPORT CHAPTER 6 ...
Page 147: ......
Page 148: ......
Page 150: ...APPENDIX A A 2 PRONAR T672ECO ...