![background image](http://html1.mh-extra.com/html/mack/e7/e7_service-manual_3065456270.webp)
Page 8-8
200 ENGINE INSTALLATION & TESTING
Restriction Pressure Test
Perform restriction pressure test at maximum,
full-load condition.
A restriction in the internal portion of cooler may
interfere with proper airflow, and can result in
excessively high pyrometer readings. To perform
a restriction pressure test, use the following
procedure:
1. Units are equipped with connections on the
inward sides of inlet and outlet charge cooler
tubes. Remove plugs and install pressure
gauge lines to begin test.
2. Install the appropriate pressure gauge to
inlet and outlet charge air cooler tubes. The
maximum allowable pressure drop across
cooler is 2 psi (13.79 kPa) at full-load
condition.
If using manometers for this test, the difference
between readings should not exceed 4 in-Hg
(13.5 kPa).
3. If pressure drop is higher than specified
amount, remove CMCAC. Flush the inside
to remove any deposits that may be present.
Do not use caustic cleaners. Be extremely
careful when handling cooler so as not to
damage core.
The clamp springs must always be located on
underside of tube to avoid damaging hood when
closed.
4. Reinstall cooler if removed to flush and then
pressure-test CMCAC system.
5. If cooler passes restriction and pressure
tests, remove test equipment, reinstall inlet
and outlet tubes, hoses and clamps or
reinstall plugs, if equipped. Tighten clamps
to 38 lb-in (4.3 N
폷
m).
Core Repair
Certain types of CMCAC core foreign object
impact damage can be field-repaired (depending
on extent of damage). Other types, or more
extensive damage, cannot be field-repaired and
require core replacement.
Determining whether or not core damage is
repairable is a critical first step. Proper diagnosis
can eliminate costly man hours and keep vehicle
downtime to a minimum.
REPAIR PROCEDURES
The following guidelines will help you determine
which areas are repairable or nonrepairable.
To ensure the CMCAC system will function
properly after repair or replacement, a pressure/
leak test is recommended.
5-101.bk Page 8 Friday, March 17, 2006 11:05 AM
Содержание E7
Страница 1: ...E7 ENGINE OVERHAUL AUGUST 1997 ENGINE 5 101...
Страница 2: ...Page 0 front fr5 Page 0 Friday March 17 2006 11 04 AM...
Страница 5: ...E7ENGINE OVERHAUL MARCH 2006 2 5M REP AUGUST 1997 10M MACK TRUCKS INC 1997 ENGINE 5 101...
Страница 7: ...SAFETY INFORMATION Page iii SAFETY INFORMATION front fr5 Page iii Friday March 17 2006 11 04 AM...
Страница 13: ...ABOUT THIS MANUAL Page ix ABOUT THIS MANUAL front fr5 Page ix Friday March 17 2006 11 04 AM...
Страница 15: ...TABLE OF CONTENTS Page xi TABLE OF CONTENTS front fr5 Page xi Friday March 17 2006 11 04 AM...
Страница 24: ...Page xx NOTES front fr5 Page xx Friday March 17 2006 11 04 AM...
Страница 25: ...200 GENERAL INFORMATION Page 1 1 GENERAL INFORMATION 5 101 bk Page 1 Friday March 17 2006 11 05 AM...
Страница 31: ...200 SPECIFICATIONS Page 2 1 SPECIFICATIONS 5 101 bk Page 1 Friday March 17 2006 11 05 AM...
Страница 55: ...200 ENGINE REMOVAL Page 3 1 ENGINE REMOVAL 5 101 bk Page 1 Friday March 17 2006 11 05 AM...
Страница 58: ...Page 3 4 NOTES 5 101 bk Page 4 Friday March 17 2006 11 05 AM...
Страница 59: ...200 ENGINE DISASSEMBLY Page 4 1 ENGINE DISASSEMBLY 5 101 bk Page 1 Friday March 17 2006 11 05 AM...
Страница 90: ...Page 4 32 NOTES 5 101 bk Page 32 Friday March 17 2006 11 05 AM...
Страница 91: ...200 BENCH PROCEDURES Page 5 1 BENCH PROCEDURES 5 101 bk Page 1 Friday March 17 2006 11 05 AM...
Страница 158: ...Page 5 68 NOTES 5 101 bk Page 68 Friday March 17 2006 11 05 AM...
Страница 159: ...200 ENGINE ASSEMBLY Page 6 1 ENGINE ASSEMBLY 5 101 bk Page 1 Friday March 17 2006 11 05 AM...
Страница 186: ...Page 6 28 200 ENGINE ASSEMBLY Figure 6 26 Flywheel Housing Bolts 5 101 bk Page 28 Friday March 17 2006 11 05 AM...
Страница 240: ...Page 6 82 NOTES 5 101 bk Page 82 Friday March 17 2006 11 05 AM...
Страница 241: ...200 SETUP AND ADJUSTMENTS Page 7 1 SETUP AND ADJUSTMENTS 5 101 bk Page 1 Friday March 17 2006 11 05 AM...
Страница 263: ...200 ENGINE INSTALLATION TESTING Page 8 1 ENGINE INSTALLATION TESTING 5 101 bk Page 1 Friday March 17 2006 11 05 AM...
Страница 272: ...Page 8 10 NOTES 5 101 bk Page 10 Friday March 17 2006 11 05 AM...
Страница 273: ...200 TROUBLESHOOTING Page 9 1 TROUBLESHOOTING 5 101 bk Page 1 Friday March 17 2006 11 05 AM...
Страница 292: ...Page 9 20 NOTES 5 101 bk Page 20 Friday March 17 2006 11 05 AM...
Страница 293: ...200 APPENDIX Page 10 1 APPENDIX 5 101 bk Page 1 Friday March 17 2006 11 05 AM...
Страница 295: ...200 APPENDIX Page 10 3 E7 LUBRICATION SYSTEM 5 101 bk Page 3 Friday March 17 2006 11 05 AM...
Страница 296: ...Page 10 4 200 APPENDIX E7 COOLING SYSTEM 5 101 bk Page 4 Friday March 17 2006 11 05 AM...
Страница 297: ...INDEX Page 11 1 INDEX INDEX FR5 Page 1 Friday March 17 2006 11 04 AM...
Страница 302: ...Page 11 6 NOTES INDEX FR5 Page 6 Friday March 17 2006 11 04 AM...
Страница 303: ...E7 ENGINE OVERHAUL PRINTED IN U S A ENGINE 5 101 MACK TRUCKS INC 1997...