CHASSIS INFORMATION --- SECTION 10 • 373
NEPTUNE 2004
10
Correct U-joint working angles U-joint phasing, and driveline balance is vital to
maintaining a quiet-running drivetrain and long life of drivetrain components
(including driveline components).
When in phase, the slip yoke lugs (ears)
and tube yoke lugs (ears) are in line.
Normally this is the ideal condition and gives
the smoothest running shaft. There may be an
alignment arrow stamped on the slip yoke
and on the tube shaft to assure proper phasing
when assembling these components. If there
are no alignment marks, they should be
added before disassembly of the shaft to
assure proper reassembly.
Phasing is relatively simple on a two-joint
set, be sure that the slip yoke lugs and the
tube yoke lugs are in line.
The U-Joint working angle is the angle formed by the intersection of the
driveshaft centerline and the extended centerline of the shaft of any component to
which the U-joint connects. Because the double oscillating motion of a U-joint
that connects angled shafts causes a fluctuating speed difference between the
shafts, the effect created by the U-joint at one end of the shaft must cancel the
effect created by the U-joint at the other end. This is done by making U-joint
working angles at both ends of the driveshaft approximately equal, with the
U-joints in phase. If the yoke lugs at both ends of the shaft are lying in the same
plane (a plane which bi-sects the shaft lengthwise), the U-joints will be in phase.
Any condition which allows excessive movement of a drive shaft will cause
driveline imbalance: loose end yoke nuts, loose U-joint bearing cap retaining
capscrews, worn U-joint trunnions, bearings and worn slip-joint splines.
Among the most common causes of U-joint and slip joint damage is lack of
lubrication. To keep the motorhome operating smoothly and economically, the
driveline must be carefully checked and lubricated at regular intervals.
U-Joint Angles,
Phasing & Driveline
Balance
090336 mod
090337
Slip Yoke
Tube Yoke
Summary of Contents for Neptune 2004
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Page 84: ...84 SECTION 2 DRIVING SAFETY NEPTUNE 2004 Weight Label...
Page 90: ...90 SECTION 2 DRIVING SAFETY NEPTUNE 2004 020254...
Page 92: ...92 SECTION 2 DRIVING SAFETY NEPTUNE 2004 020255B...
Page 93: ...DRIVING SAFETY SECTION 2 93 NEPTUNE 2004 2 020263 Weight Record Sheet...
Page 94: ...94 SECTION 2 DRIVING SAFETY NEPTUNE 2004 VIEWS Front Rear 010726c 010725...
Page 95: ...DRIVING SAFETY SECTION 2 95 NEPTUNE 2004 2 Roadside Curbside 010723d 010724e...
Page 106: ...106 SECTION 2 DRIVING SAFETY NEPTUNE 2004 NOTES...
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Page 151: ...EXTERIOR INTERIOR CARE SECTION 3 151 NEPTUNE 2004 3 NOTES...
Page 152: ...152 SECTION 3 EXTERIOR INTERIOR CARE NEPTUNE 2004 NOTES...
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Page 191: ...4 APPLIANCES SECTION 4 191 NEPTUNE 2004 NOTES...
Page 192: ...192 SECTION 4 APPLIANCES NEPTUNE 2004 NOTES...
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Page 231: ...EQUIPMENT SECTION 5 231 NEPTUNE 2004 5 NOTES...
Page 232: ...232 SECTION 5 EQUIPMENT NEPTUNE 2004 NOTES...
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Page 255: ...WATER SYSTEMS SECTION 6 255 NEPTUNE 2004 NOTES 6...
Page 256: ...256 SECTION 6 WATER SYSTEMS NEPTUNE 2004 NOTES...
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Page 276: ...276 SECTION 7 LP GAS SYSTEMS NEPTUNE 2004 NOTES...
Page 278: ......
Page 313: ...ELECTRICAL SYSTEMS HOUSE SECTION 8 313 NEPTUNE 2004 NOTES 8...
Page 314: ...314 SECTION 8 ELECTRICAL SYSTEMS HOUSE NEPTUNE 2004 NOTES...
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Page 346: ...346 SECTION 9 ELECTRICAL SYSTEMS CHASSIS NEPTUNE 2004 NOTES...
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Page 411: ...CHASSIS INFORMATION SECTION 10 411 NEPTUNE 2004 10 METRIC U S CONVERSION CHART...
Page 413: ...CHASSIS INFORMATION SECTION 10 413 NEPTUNE 2004 10...
Page 414: ...414 SECTION 10 CHASSIS INFORMATION NEPTUNE 2004...
Page 415: ...CHASSIS INFORMATION SECTION 10 415 NEPTUNE 2004 10...