Hale RGA - Manual (Page 10)

SPLIT-SHAFT PTO GEARBOX
INSTALLATION MANUAL 8
DRIVE LINE INSTALLATION PLANNING
Before installing either the MGA or RGA
gearbox careful planning is necessary.
When planning the layout for the installation
of the gearbox careful attention must be
given to all factors that will affect total
system performance. To reduce the
possibility of drive line failure, proper layout
is necessary. When laying out the drive line
the following must be considered:
CAUTION: Before lay out and installation
of the drive line, consult apparatus and/
or drive line component manufacturer
for specific guidance in drive line design.
1. The drive shaft assembly between the
truck transmission and the split shaft PTO
gearbox must be independently phased
with u-joint angles cancelled. Likewise the
drive shaft assembly between the split shaft
PTO gearbox and the rear axle must also be
independently phased with u-joint angles
cancelled.
2. Drive shaft angularity should be less than
that listed as maximum in drive line
component specifications. For specific
guidance consult with driveline component
manufacturer. The following chart provides
general guidance on maximum drive shaft
angularity based on drive shaft input speed
for normal length drive shafts:
RPM ANGLE
2500 7 o 00’
3000 5 o 50’
3500 5 o 00’
4000 4 o 15’
4500 3 o 40’
5000 3 o 15’
CAUTION: Drive shafts less than 15
inches (381 mm) long should have no
more than 1
o 30’ angularity.
3. The maximum length of a drive shaft
section should not exceed a length which
allows the drive line to run at or above:
4. The maximum drive shaft speed shall not
exceed 5000 RPM.
5. Consideration must be given to all load
conditions.
6. The drive shafts must be concentric and
dynamically balanced to the standard
listed by the apparatus drive line and
transmission manufacturer.
7. Drive shaft joint and tube size must
match the chassis manufacturers original
design.
SHAFT CRITICAL
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