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OPERATION 141
PTO Classification
Rear-mounted PTO units, for MACK transmissions, are categorized according to operation.
Intermittent Service —
The PTO unit is operated, under load, for less than seven minutes
and then allowed to cool before it is operated again.
Note:
If a PTO unit is operated for less than seven minutes but is "not" allowed to cool down
before operating again, it is considered in Continuous Service.
Continuous Service —
The PTO unit is operated, under load, for seven minutes or more.
Note:
Rear-mounted PTO units operating under the Continuous Service guideline must not
be run at more than 70% of the PTO output-rated torque/horsepower.
Side-Mounted PTO Locations
The first choice location for Side-Mounted PTOs is either of the PTO openings on the
main box.
The second choice, which is the compound PTO opening, is restricted to those applications
specifically requiring multi-speed PTOs with reverse capability, such as some mechanical
winches or unique speed or multiple PTO requirements. However, a word of caution is in
order when using these locations. Operators should be trained to understand and follow
the proper operating procedures as described in the cab instructions, and avoid using the
neutralizing feature as a power disconnect for vehicle propulsion.
PTO Operating Procedures
Specific PTO operating procedures are described at the end of applicable transmissions
in the following section.
Summary of Contents for CHM 2010
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Page 25: ...SAFETY INFORMATION 17 Advisory Label Locations On Vehicle Labels Found on Chassis C0032631...
Page 26: ...18 SAFETY INFORMATION W8061742...
Page 27: ...SAFETY INFORMATION 19 C0032633...
Page 28: ...20 SAFETY INFORMATION W8061397...
Page 29: ...SAFETY INFORMATION 21 Labels Found on Driver Side Sun Visor W8061402...
Page 35: ...SAFETY INFORMATION 27 C0032643...
Page 37: ...SAFETY INFORMATION 29 C0032645...
Page 47: ...INSTRUMENTS AND CONTROLS 39 INSTRUMENT PANEL GAUGE LAYOUT C0032654...
Page 76: ...68 INSTRUMENTS AND CONTROLS C0032684...
Page 107: ...OPERATION 99 W4059732 Control Switch W4059733 Mode Switch...
Page 160: ...152 OPERATION C0032897...
Page 166: ...158 OPERATION C0032898...
Page 192: ...184 Mack Emissions Solution W8056653...
Page 207: ...MAINTENANCE AND LUBRICATION 199 C0032899 C0032900 1 Towhook Access...
Page 218: ...210 MAINTENANCE AND LUBRICATION ELECTRICAL Circuit Breaker and Relay Panels C0032908...
Page 232: ......