Figure 7-1: maximum recommended driveline lengths – Hale SMR User Manual
Page 127
Stainless Max Series Pumps
7-3
Installation
Figure 7-1: "Maximum Recommended Drive Lengths” lists the maxi-
mum driveline length using a safety factor of 42% of critical speed. This
table is based on a 0.134” (3.4mm) wall thickness. Although wall
thickness does not have a significant effect on drive shaft length for this
calculation, it does have some effect.
Extremely short drive lengths between the pump and the rear axle can
also cause problems from excessive operating angles when the sus-
pension articulates. Use caution and conservative design values when
utilizing air ride suspension and short rear drivelines.
More information on fire apparatus drivelines can be found in Hale OEM
Technical Bulletin # 957. For application assistance and approval,
contact a driveline equipment manufacturer, such as Spicer/Dana or
Merritor.
Note: This information is offered by Hale Products Inc. to assist the
installer. For additional information, contact Hale Products and order
Bulletin #957, “OEM Technical Bulletin: Fire Apparatus Drivelines.”
Hale assumes no liability for any information provided under this
heading “DriveLine.” Driveline design and truck system integration is
the responsibility of the apparatus manufacturer. Failure to comply
with the driveline parameters set forth can result in termination of
Hale’s warranty on driveline related issues.
0
0
4
,
2
7
4
3
5
8
5
3
6
7
6
1
7
0
0
6
,
2
5
4
1
5
5
5
0
6
4
6
8
6
0
0
8
,
2
4
4
9
4
3
2
8
5
2
6
5
6
0
0
0
,
3
2
4
7
4
2
5
6
5
0
6
3
6
0
0
2
,
3
1
4
6
4
0
5
4
5
8
5
1
6
0
0
4
,
3
9
3
4
4
8
4
3
5
6
5
9
6
0
0
6
,
3
8
3
3
4
7
4
1
5
5
5
8
5
0
0
8
,
3
7
3
2
4
6
4
0
5
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5
0
0
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,
4
6
3
1
4
5
4
8
4
2
5
5
5
Shaft
RPM
Figure 7-1: Maximum Recommended Driveline Lengths
Driveline tube size (diameter) – inches (millimeters)
2.0
(51)
2.5
(64)
3.0
(76)
3.5
(89)
4.0
(102)
4.5
(114)