Anatomy of Engineering Laboratory emanual LAB 2B: PRESSURE WASHER

Transcription

1 CONCORDIA UNIVERSITY Department of Mechanical and Anatomy of Engineering Laboratory emanual LAB 2B: PRESSURE WASHER Pressure Washer

2 BEGINNING MAKE SURE YOU 1. WILL BE ABLE TO RETURN THE TOOLCART to its ORIGINAL CONFIGURATION [i.e., study the toolcart] 2. Know how to use all the tools [ASK if you are not sure] 3. KNOW WHAT YOU ARE LOOKING FOR [as in DATA and RESULTS] 4. Have safety glasses 5. Are aware of the dangerous steps 6. Have a plan for any difficult steps 7. Have necessary cleaning materials Lets begin! Pressure Washer

3 CAUTION: DO NOT OVERTIGHTEN ANY FASTENERS Pressure Washer Pressure Washer 3

4 Remove spark plug wire Pressure Washer 4

5 Remove cover retaining bolts Pressure Washer 5

6 Remove cover Pressure Washer 6

7 Remove housing retaining bolts Pressure Washer 7

8 Note there are three of them Pressure Washer 8

9 Remove housing Pressure Washer 9

10 Remove gas cap Pressure Washer 10

11 Remove bolt behind gas cap Pressure Washer 11

12 Remove gas tank retaining bolts Disconnect hose from carburator, electric line and carburator throttle link. Remove fuel tank Bonus: What is the purpose of the hose connected to the carburator (You might need to wait till you disassemble the engine further to see where it goes) Step No.9 Pressure Washer 12

13 Remove muffler guard retaining bolts Pressure Washer 13

14 Remove muffler guard Pressure Washer 14

15 Remove spark plug Bonus: What is the purpose of the spark plug Pressure Washer 15

16 Remove head bolts Pressure Washer 16

17 Remove head Pressure Washer 17

18 Remove valve inspection cover bolts Pressure Washer 18

19 Remove valve inspection cover Pressure Washer 19

20 Disconnect high pressure hose Pressure Washer 20

21 Disconnect inlet hose Pressure Washer 21

22 Disconnect soap hose Pressure Washer 22

23 Loosen engine retaining bolts Pressure Washer 23

24 Remove engine Two people required Pressure Washer 24

25 Remove pump to engine fastening bolts Pressure Washer 25

26 Remove engine cover bolts Pressure Washer 26

27 Remove engine cover Pressure Washer 27

28 Remove Camshaft Pressure Washer 28

29 Bonus: what is the function of the keyseat? Camshaft Pressure Washer 29

30 Pressure Washer 30

31 Remove Valve Push - Rods Pressure Washer 31

32 Pressure Washer 32

33 Pressure Washer 33

34 Determine function of object being pointed at Bonus: what is the function of the governor? Pressure Washer 34

35 MIDDLE You have finished disassembly Make sure you have 1. Accumulate as much data as possible 2. Analyze and synthesize as many results as possible 3. CLEANed and ORGANIZed before resuming assembly Now on to reassembly Pressure Washer

36 Prepare to reassemble Pressure Washer 36

37 Reassemble engine valves Bonus: Which valve is Intake / Exhaust? Pressure Washer 37

38 STOP NOW ask an instructor, programmer on duty [POD] or technician to supervise the next step. Failure to do this will result in a 5 MARK PENALTY in the performance grade. Pressure Washer

39 Bonus: what is the importance of the timing mark? Replace camshaft Ensure that the timing marks are lined up Pressure Washer 39

40 Replace governor Pressure Washer 40

41 STOP NOW ask an instructor, programmer on duty [POD] or technician to supervise the next step. Failure to do this will result in a 5 MARK PENALTY in the performance grade. Pressure Washer

42 Replace engine cover Pressure Washer 42

43 Replace engine cover bolts Pressure Washer 43

44 Reattach pump to engine Bonus: what is the significance of the mark or number on the head of the bolts? Pressure Washer 44

45 Mount engine to chassis Pressure Washer 45

46 Reattach soap hose Pressure Washer 46

47 Reattach the inlet hose Pressure Washer 47

48 Bonus: what is the purpose of the black plastic fitting? Reattach high pressure hose Pressure Washer 48

49 Replace valve inspection cover Pressure Washer 49

50 Replace valve inspection cover bolts Pressure Washer 50

51 Replace head Hand tighten bolts DO NOT Replace the top three (3) bolts yet. Pressure Washer 51

52 Replace spark plug Pressure Washer 52

53 Replace muffler guard Pressure Washer 53

54 Replace gas tank Hand Tighten the top three (3) head bolts Pressure Washer 54

55 Attach Hose Replace gas cap Pressure Washer 55

56 STOP NOW ask an instructor, programmer on duty [POD] or technician to supervise the next step. Failure to do this will result in a 5 MARK PENALTY in the performance grade. Pressure Washer

57 Torque the head bolts to 120 in-lbs. Follow the proper torque sequence. Pressure Washer 57

58 Replace housing Pressure Washer 58

59 Replace housing bolts Pressure Washer 59

60 Replace cover Pressure Washer 60

61 Replace cover bolts Pressure Washer 61

62 Attach spark plug wire Pressure Washer 62

63 Ensure no optional parts remain on workbench Pressure Washer 63

64 END BEFORE YOU LEAVE Make sure you have 1. CLEANed and ORGANIZed your area. 2. Returned all tools as you found them. 3. HAD YOUR DATA SHEETS SIGNED for AUTHENTICITY TIME FOR A NAP Pressure Washer