NOTE
The longer or steeper the hill, the more
important it is to use your engine
brakes. Make maximum use of your
engine brakes by gearing down and
letting the engine brakes do the work.
Shift to a Lower Gear on Grade
RPM
1
2
3
4 R
5
5
OK
2100
RPM
1
2
3
4
4
5
R
MPH
0
10
20
30
40 50
60
70
80
OK
MPH
0
10
20
30
40 50
60
70
80
2100
If frequent use of the vehicle service
brakes is required, it is recommended that
a slower control speed be used by
selecting a lower transmission gear.
Tips for Operation on Slick Roads
WARNING
To reduce the possibility of personal
injury or property damage, always al-
low for extra distance between your
vehicle and other objects when using
the service brakes or engine brakes on
slick roads.
The operation of any vehicle is difficult to
predict on slick roads. The first 10 to 15
minutes of rainfall are the most dangerous,
as road dirt and oil mixed with rain create a
very slippery surface.
WARNING
DO NOT use any of the vehicle’s re-
tarders in any situation that requires
an immediate stop and/or in situations
of poor traction (such as wet, icy or
snow covered roads). Trying to use
the retarder instead of the service
brakes may cause a loss of vehicle
control, which may result in an acci-
dent involving death or personal injury.
When driving on slick roads, start with the
“ON/OFF” switch in the “OFF” position and
the two-position selector switch in the
“LOW” position. If your tractor is equipped
with a twin-screw rear axle, position the
power divider switch in the “unlocked”
position. Remove your foot from the
accelerator pedal to make sure the vehicle
will maintain traction with the retarding
power of the engine alone. If the vehicle
drive wheels begin to skid or if there is a
fishtailing motion, DO NOT activate the
engine brakes. If traction is maintained
using the retarding power of the engine
alone and more braking power is required,
switch the two-position selector switch to
the “LOW” position and activate the engine
brakes by switching the “ON/OFF” switch
to the “ON” position. If the vehicle’s drive
wheels begin to skid or there is a fishtailing
motion, switch the “ON/OFF” switch to the
“OFF” position. If traction is maintained
when the engine brakes are activated and
more braking power is required, move the
two-position selector switch to the “HI”
position. Again, if the vehicle has lost
traction or if there is a fishtailing motion,
switch the “ON/OFF” switch to the “OFF”
position. DO NOT attempt to use the
engine brakes in the “HI” position.
ENGINE OPERATION - Operating Instructions
Y53-1183-1G1 (05/19)
29
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Summary of Contents for PX-7
Page 1: ...Operator s Manual Operator s Manual 2019 2020 Model Years 2017 Emissions Warranty...
Page 2: ......
Page 3: ...Engine Operation 1 Engine Maintenance 2 Engine Warranty 3 Contents...
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Page 75: ...ENGINE MAINTENANCE Engine Identification Y53 1183 1G1 05 19 73 2...
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