TTK 1G Cluch Basics

1. -- CLUTCH BASICSCLUTCH BASICS ---- CLUTCH BASICSCLUTCH BASICS --
• CONSTRUCTIONCONSTRUCTION
• BASIC WIRINGBASIC WIRING

2. ROTATING FIELD
CLUTCH
ROTATING FIELD
CLUTCH
‘ NEXT SLIDE FOR REAR VIEW

3. ROTATING FIELD
CLUTCH
ROTATING FIELD
CLUTCH

4. ROTATING MAGNETIC FIELD
CLUTCH
(OLD TECHNOLOGY)
ROTATING MAGNETIC FIELD
CLUTCH
(OLD TECHNOLOGY)
ADVANCE ONE SLIDEADVANCE ONE SLIDE
FOR A BETTER LOOKFOR A BETTER LOOK

6. FIXED MAGNETIC FIELD
CLUTCH
FIXED MAGNETIC FIELD
CLUTCH

7. FIXED MAGNETIC FIELDFIXED MAGNETIC FIELD
CLUTCHCLUTCH
MODERNMODERN
FIXED MAGNETIC FIELDFIXED MAGNETIC FIELD
CLUTCHCLUTCH
MODERNMODERN
ADVANCE ONE SLIDEADVANCE ONE SLIDE
FOR A BETTER LOOKFOR A BETTER LOOK

9. CLUTCH
INSTALATION

10. CHECKING CLUTCH AIR GAP

11. TYPICAL CLUTCH
CIRCUIT
TYPICAL CLUTCH
CIRCUIT
BLOWER
A/C
CONTROL
HEAD
CLUTCH
COIL
FUSE
BATTERY
DE-ICE
SWITCH
DEF
HEAT
VENT
MAX
BLEND
OFF

12. WHAT IS A DEICE
SWITCH?
WHAT IS A DEICE
SWITCH?
ICE

13. DEICE
SWITCH
DEICE
SWITCH
• NNON-ADJUSTABLE
• CAPILLARY TUBE IS
INSTALLED ON:
EVAPORATOR
OUTLET PIPE
EVAPORATOR FINS

14. • ADJUSTABLE
• CAPILLARY TUBE IS
INSTALLED ON:
EVAPORATOR
OUTLET PIPE
EVAPORATOR FINS
DEICE
SWITCH
DEICE
SWITCH

15. TYPICAL CLUTCH
CIRCUIT
A/C
CONTROL
HEADBATTERY
CLUTCH
COIL
DE-ICEDE-ICE
SWITCHSWITCH
FUSE BLOWER
DEF
HEAT
VENT
MAX
BLEND
OFF

16. WHAT IS A LOW PRESSURE
SWITCH USED FOR?
WHAT IS A LOW PRESSURE
SWITCH USED FOR?

17. ?

18. Which of the following is true ofWhich of the following is true of
modern A/C clutches?modern A/C clutches?
a.a. Most are of the stationary field-Most are of the stationary field-
typetype
b.b. Most are of the rotating field-Most are of the rotating field-
typetype
c.c. Most do not use brush setsMost do not use brush sets
d.d. All clutches use brush setsAll clutches use brush sets
e.e. Both a and c are correct.Both a and c are correct.

19. TYPICAL CLUTCH
CIRCUIT
A/C
CONTROL
HEADBATTERY
CLUTCH
COIL
LOWLOW
PRESSUREPRESSURE
SWITCHSWITCH
FUSE BLOWER
DEF
HEAT
VENT
MAX
BLEND
OFF

20. WHAT IS A HIGH PRESSURE
SWITCH USED FOR?
WHAT IS A HIGH PRESSURE
SWITCH USED FOR?

21. TYPICAL CLUTCH
CIRCUIT
TYPICAL CLUTCH
CIRCUIT
A/C
CONTROL
HEADBATTERY
CLUTCH
COIL
LOWLOW
OR HIGHOR HIGH
PRESSUREPRESSURE
SWITCHSWITCH
FUSE BLOWER
DEF
HEAT
VENT
MAX
BLEND
OFF

22. COULD WE DEICE
BY USING A
PRESSURE
SWITCH?
COULD WE DEICE
BY USING A
PRESSURE
SWITCH?
• PRESSURE CYCLE SWITCH

23. TYPICAL CLUTCH
CIRCUIT
A/C
CONTROL
HEADBATTERY
CLUTCH
COIL
FUSE BLOWER
DEF
HEAT
VENT
MAX
BLEND
OFF
PRESSUREPRESSURE
CYCLINGCYCLING
SWITCHSWITCH

24. COULD WE HAVE OTHER
SWITCHES IN THE SYSTEM?
COULD WE HAVE OTHER
SWITCHES IN THE SYSTEM?
• THE ANSWER IS YESTHE ANSWER IS YES
• THAT’S UP TO THE ENGINEERTHAT’S UP TO THE ENGINEER
• EACH SYSTEM IS SLIGHTLY DIFFERENTEACH SYSTEM IS SLIGHTLY DIFFERENT
• WHAT DID YOU NOTICE ABOUT WHEREWHAT DID YOU NOTICE ABOUT WHERE
THE SWITCHES JUST SEEN ARE USUALLYTHE SWITCHES JUST SEEN ARE USUALLY
PLACED IN THE ELECTRICALPLACED IN THE ELECTRICAL
SCHEMATIC?SCHEMATIC?

25. TYPICAL CLUTCH
CIRCUIT
A/C
CONTROL
HEADBATTERY
CLUTCH
COIL
FUSE BLOWER
DEF
HEAT
VENT
MAX
BLEND
OFF
SWITCHSWITCH

26. ?

27. To prevent ice formation on the fins and
coils of the evaporator, the temperature of
the air should never be allowed to go
below:
• a. 28°F
• b. 30°F
• c. 33°F
• d. 40°F