88 • SECTION 2 --- DRIVING & SAFETY
NEPTUNE 2004
Cargo Carrying Capacity:
When weighing the motorhome it is important to understand that each
motorhome, even of the same model year, floorplan and length will weigh different
due to options and accessories. The
Gross Vehicle Weight Rating (GVWR)
,
Gross Combination Weight Rating (GCWR
) and/or
Gross Axle Weight Rating
(GAWR)
must not be exceeded.
GVWR
of the vehicle limits the weight of the entire load combination,
regardless of the mix of water, LP-Gas, passengers, or cargo.
It is important to understand the weighing process is performed in two phases.
The first phase is determining the
Cargo Carrying Capacity (CCC)
and the
second to ensure the
GVWR
is not exceeded when adjusting tire pressures. The
weighing process should start by recording the
GVWR
from the Federal Weight
Label, then weighing the motorhome unloaded, without passengers and with a full
fuel tank. Engine and transmission fluid levels must be full. This is known as the
Unloaded Vehicle Weight (UVW)
. Once this weight has been recorded it can be
subtracted from the
GVWR
.
Next, begin to calculate the
Cargo Carrying Capacity (CCC)
.
Fresh water weight and LP-Gas weight can now be subtracted from the
remaining total line “A”.
• Water weight is the number of gallons multiplied by 8.3.
• LP-Gas weight is the number of gallons multiplied by 4.2.
A 10-gallon water heater with a 40-gallon fresh tank would total 50 gallons
times 8.3, or 415 pounds.
A 30-gallon LP-Gas tank will have 24 gallons of LP-Gas due to the 80% valve.
This would mean 24 gallons multiplied by 4.2, or 100.8 pounds.
Next, calculate the
Sleep Capacity Weight Rating (SCWR)
. The manufacturer's
designated number of sleeping positions for the motorhome multiplied by 154
pounds.
GVWR
35,000
- UVW
20,000
= A
15,000
A
15,000
- 415
= B
14,585
B
14,585
- 100.8
= C
14,484.2
Summary of Contents for Neptune 2004
Page 12: ......
Page 16: ......
Page 36: ......
Page 38: ......
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...
Page 108: ......
Page 151: ...EXTERIOR INTERIOR CARE SECTION 3 151 NEPTUNE 2004 3 NOTES...
Page 152: ...152 SECTION 3 EXTERIOR INTERIOR CARE NEPTUNE 2004 NOTES...
Page 154: ......
Page 191: ...4 APPLIANCES SECTION 4 191 NEPTUNE 2004 NOTES...
Page 192: ...192 SECTION 4 APPLIANCES NEPTUNE 2004 NOTES...
Page 194: ......
Page 231: ...EQUIPMENT SECTION 5 231 NEPTUNE 2004 5 NOTES...
Page 232: ...232 SECTION 5 EQUIPMENT NEPTUNE 2004 NOTES...
Page 234: ......
Page 255: ...WATER SYSTEMS SECTION 6 255 NEPTUNE 2004 NOTES 6...
Page 256: ...256 SECTION 6 WATER SYSTEMS NEPTUNE 2004 NOTES...
Page 258: ......
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...
Page 316: ......
Page 346: ...346 SECTION 9 ELECTRICAL SYSTEMS CHASSIS NEPTUNE 2004 NOTES...
Page 348: ......
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...