Mack MP8 Manuale utente
BODY BUILDER INSTRUCTIONS
Mack Trucks
Body Builder; Engine, MP7, MP8, and MP10
CHU, CXU, GU, TD, MRU, LR
Section 2
Introduction
This information provides details for the MP7, MP8, and MP10 engines for MACK
vehicles.
Note: We have attempted to cover as much information as possible. However, this
information does not cover all the unique variations that a vehicle chassis may present.
Note that illustrations are typical but may not reflect all the variations of assembly.
All data provided is based on information that was current at time of release. However,
this information is subject to change without notice .
Please note that no part of this information may be reproduced, stored, or transmitted by
any means without the express written permission of MACK Trucks, Inc.
Contents:
•“Fuel and Oil”, page 2
•“Engine Overview”, page 3
•“Exhaust Aftertreatment System”, page 10
•“Heated Dump Bodies ”, page 25
•“Exhaust Back Pressure for US2010 and GHG2017 Engines”, page 26
•“MR/LR Exhaust Aftertreatment System Regeneration”, page 27
•“Dash Overview”, page 29
•“In-Transit Heat Cooling System ”, page 37
•“Fittings, Fuel Line, Replacement”, page 41
Mack Body Builder Instructions CHU, CXU, GU, TD, MRU, LR
USA139046859 Date 5.2017 Page 1 (43)
All Rights Reserved
General
Fuel and Oil
CAUTION
Diesel engines for 2006 and later model year vehicles are designed to operate only with ultra low sulfur diesel (ULSD) fuel.
Use of fuel other than ULSD will reduce the efficiency and durability of the engine, permanently damage the advanced
emission control systems, reduce fuel economy and possibly prevent the engine from running at all. Manufacturer's war-
ranties are likely to be rendered void by usage of improper or incorrect fuel, and usage of fuels other than ULSD fuel in die-
sel-powered vehicles is illegal and punishable with civil penalties. Use of fuel additives to compensate for the lower sulfur
content is NOT recommended by MACK Trucks, Inc.
Fuel sold for use in diesel-powered engines for 2006 and later model year vehicles may only contain a maximum sulfur con-
tent of 0.0015% by weight. This was done to reduce particle emissions in the exhaust.
Bio Diesel
The only biodiesel fuel approved by MACK Trucks, Inc. for use in MACK Engines is soy methyl ester (SME or SOME) in
blends up to B20 concentration (20% blend).
Note: Although higher concentrations are available, concentration up to B20 (maximum) are the only blends currently ap-
proved by MACK Trucks, Inc.
Greenhouse Gas 2017
Maximum limit will be B10 concentration (10% blend).
Engine Oil
EO-O Premium Plus (or VDS-4) diesel engine oil is mandatory for use in all 2017 emission compliant MACK engines. Chas-
sis equipped with a 2017 emission compliant engine, which can be identified by the presence of an aftertreatment selective
catalytic reduction (SCR) system, also require the use of Ultra Low Sulfur Diesel (ULSD) fuel. EO-O Premium Plus oils ex-
ceed the new American Petroleum Institute (API) service category CJ-4.
Notes
Mack Body Builder Instructions CHU, CXU, GU, TD, MRU, LR
USA139046859 Date 5.2017 Body Builder; Engine, MP7, MP8, and MP10 Page 2 (43)
All Rights Reserved
Engine Overview
DANGER
Do not use ether or other combustible starting aids in any MACK engine. Introduction of ether or similar starting aids could
cause a fire or explosion resulting in severe property damage, serious personal injury or death.
CAUTION
DO NOT crank the engine for more than 30 seconds at a time; wait 15 minutes after each try to allow the starter to cool.
Failure to follow these instructions could cause starter damage.
Note: Some starters are equipped with starter protection. If the engine is running, the starter temperature is too high, the
transmission is not in neutral or the clutch pedal is not depressed, starter engagement is inhibited.
Allow the engine to slow down and idle for 3 to 5 minutes before shutting it off. This allows the turbocharger to cool down and
the cooling system to dissipate the engine heat. Switch the engine off by turning the ignition key to the OFF position.
CAUTION
Shutting off an engine immediately after high speed or full load operation can damage the turbocharger and cause heat
stress in the engine. Always let the engine idle for 3 to 5 minutes before shutting it off.
MACK Trucks, Inc. does not recommend the use of winterfronts, shutters or any other shield in front of the grille or radiator
package under normal circumstances. Today's electronically controlled engines are designed to operate in cold tempera-
tures without a winterfront. These devices, if not used properly, can cause higher exhaust gas temperatures, power loss, ex-
cessive fan usage, failure of the charge-air-cooler (CAC) and a reduction in fuel economy. Winterfronts can be used in the
wintertime during very cold weather if used properly. In these cases, engine coolant and intake air temperatures must also
be carefully monitored and controlled. Please see your authorized MACK Truck dealer for recommended winterfronts.
CAUTION
MACK is now using the ambient air temperature (AAT) sensor for on board diagnostic (OBD) monitoring. If a customer in-
stalls a winterfront or blocks the radiator opening and blocks airflow to the sensor, they will likely set an OBD diagnostic
trouble code (DTC) for inaccurate sensor data due to restricted airflow across the sensor.
Mack Body Builder Instructions CHU, CXU, GU, TD, MRU, LR
USA139046859 Date 5.2017 Body Builder; Engine, MP7, MP8, and MP10 Page 3 (43)
All Rights Reserved
Engine Shutdown System
DANGER
Failure to take the necessary precautions when the STOP telltale is on can result in automatic engine shutdown and the
loss of power steering. Vehicle crash can occur.
The engine shutdown system will automatically derate or stop the engine when one or more of the conditions listed below
reaches a critical stage:
•High Engine Coolant Temperature (ECT)
•Low Engine Oil Pressure (EOP)
•Low Engine Coolant Level (ECL)
•High Crankcase Pressure (CCP)
When the shutdown is activated, the telltales come on along with display symbols and the buzzer is also activated. After a
brief time, the engine shuts down. Find a safe place to pull off the road as soon as possible.
After the engine has been shut down by the system, turn the ignition key to the OFF position. If necessary, the engine can be
restarted for a brief time so that the vehicle may be pulled off the road.
The alarm will remain activated until repairs have been made to correct the problem that caused the shutdown.
CAUTION
Continuously restarting the engine once the shutdown system is active may result in severe engine damage.
Refer to the driver information display (DID) manual for information about the display symbols.
W2116208
Mack Body Builder Instructions CHU, CXU, GU, TD, MRU, LR
USA139046859 Date 5.2017 Body Builder; Engine, MP7, MP8, and MP10 Page 4 (43)
All Rights Reserved
Engine Overview, MP7 and MP8 Left Side View
W2006034
MP8 Engine Shown, MP7 Engine Similar
1. Breather Tube 9. Fuel Filter
2. Intake Manifold 10. Hand-Priming Pump
3. Air Compressor 11. Crankcase Ventilator
4. Power Steering Pump 12. Alternator
5. Fuel Pump 13. AC Compressor
6. Engine Control Module (ECM) 14. Alternator/AC Compressor Belt
7. Fuel Filter 15. Fan/Coolant Pump Belt
8. Fuel/Water Separator 16. Exhaust Gas Recirculation (EGR) Mixing Chamber
Mack Body Builder Instructions CHU, CXU, GU, TD, MRU, LR
USA139046859 Date 5.2017 Body Builder; Engine, MP7, MP8, and MP10 Page 5 (43)
All Rights Reserved
Engine Overview, MP7 and MP8 Right Side View
W2006035
MP8 Engine Shown, MP7 Engine Similar
17. Exhaust Manifold 24. Venturi Pipe
18. Valve Cover 25. Oil Filters
19. Intake Air Heater (IAH) optional 26. Oil Pan
20. Thermostat 27. Exhaust Gas Recirculation (EGR) Cooler
21. Belt Tensioner 28. Turbocharger
22. Coolant Pump 29. Starter Motor
23. Coolant Filter 30. Exhaust Gas Recirculation (EGR) Valve
Mack Body Builder Instructions CHU, CXU, GU, TD, MRU, LR
USA139046859 Date 5.2017 Body Builder; Engine, MP7, MP8, and MP10 Page 6 (43)
All Rights Reserved
Engine Overview, MP10 Left Side View
W2006037
1. Breather Tube 10. Fuel Filter
2. Intake Manifold 11. Hand-Priming Pump
3. Air Compressor 12. Alternator
4. Power Steering Pump 13. AC Compressor
5. Fuel Pump 14. Alternator/AC Compressor Belt
6. Crankcase Ventilator 15. Fan/Coolant Pump Belt
7. Engine Control Module (ECM) 16. Venturi Pipe
8. Fuel Filter 17. Exhaust Gas Recirculation (EGR) Mixing Chamber
9. Fuel/Water Separator
Mack Body Builder Instructions CHU, CXU, GU, TD, MRU, LR
USA139046859 Date 5.2017 Body Builder; Engine, MP7, MP8, and MP10 Page 7 (43)
All Rights Reserved
Engine Overview, MP10 Right Side View
W2006036
18. Exhaust Manifold 25. Oil Filters
19. Valve Cover 26. Exhaust Gas Recirculation (EGR) Cooler
20. Intake Air Heater (IAH) 27. Oil Pan
21. Thermostat 28. Starter Motor
22. Belt Tensioner 29. Turbocharger
23. Coolant Pump 30. Exhaust Gas Recirculation (EGR) Valve
24. Coolant Filter
Mack Body Builder Instructions CHU, CXU, GU, TD, MRU, LR
USA139046859 Date 5.2017 Body Builder; Engine, MP7, MP8, and MP10 Page 8 (43)
All Rights Reserved
Engine Clearance
A minimum of 40.64 mm (1.6 in) of clearance should be maintained around the engine. Additionally, no equipment should be
installed that would restrict air flow through the radiator or to the engine air intake.
W2031928
Fig. 1 Allow Sufficient Clearance Around Engine
A. 40.64 MM (1.6 in) Minimum
Mack Body Builder Instructions CHU, CXU, GU, TD, MRU, LR
USA139046859 Date 5.2017 Body Builder; Engine, MP7, MP8, and MP10 Page 9 (43)
All Rights Reserved
MACK, Emissions Solution
Exhaust Aftertreatment System
Your new MACK chassis is equipped with emission compliant engine, with an engine exhaust aftertreatment system (DPF)
and selective catalytic reduction (SCR) system. Vehicles equipped with a DPF require the use of EO-O Premium Plus (or
VDS-4) specification high performance diesel engine oil and ultra low sulfur diesel (ULSD) fuel.
CAUTION
Use of diesel fuel other than ULSD and engine oils other than EO-O Premium Plus (or VDS-4), will adversely affect per-
formance, efficiency and durability of the DPF system and the engine, to the point where the engine may not run at all.
Manufacturer's warranties will also be rendered void due to usage of improper fuel. Unapproved fuel additives (including
engine oil) are NOT permitted.
MACK Trucks, Inc. offers two different types of DPF systems:
• Conventional DPF (passive regeneration and parked regeneration)
• Spark Assisted DPF (moving regeneration and parked regeneration)
as well as two different mounting styles:
1. MACK vertical back-of-cab DPF (both conventional DPF and spark assisted DPF)
2. MACK-Cap DPF, which is a space saving unit that is mounted inside the frame (conventional only)
C0029353
A DPF takes the place of the standard muffler. The DPF is used to meet EPA requirements to help reduce soot and particu-
late emissions into the atmosphere. The particulates are removed by collecting in the DPF unit, where they are eventually
oxidized during passive or active regeneration. The electrical system and exhaust aftertreatment system of the vehicle will
determine when regeneration is required. MACK Trucks, Inc., uses two exhaust aftertreatment systems: conventional and
spark assisted.
Conventional exhaust aftertreatment systems use aftertreatment DPF passive-active regeneration. The passive regenera-
tion process oxidizes the particulates captured in the DPF while the vehicle is in operation. A diesel oxidation catalyst (DOC)
raises the exhaust gas temperature (EGT) to approximately 260°C (500°F), the temperature at which a chemical reaction
takes place to oxidize the soot (passive regeneration).
Mack Body Builder Instructions CHU, CXU, GU, TD, MRU, LR
USA139046859 Date 5.2017 Body Builder; Engine, MP7, MP8, and MP10 Page 10 (43)
All Rights Reserved
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