CONCORDIA UNIVERSITY Department of Mechanical and Anatomy of Engineering Laboratory emanual LAB 2B: PRESSURE WASHER Pressure Washer
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
CAUTION: DO NOT OVERTIGHTEN ANY FASTENERS Pressure Washer Pressure Washer 3
Remove spark plug wire Pressure Washer 4
Remove cover retaining bolts Pressure Washer 5
Remove cover Pressure Washer 6
Remove housing retaining bolts Pressure Washer 7
Note there are three of them Pressure Washer 8
Remove housing Pressure Washer 9
Remove gas cap Pressure Washer 10
Remove bolt behind gas cap Pressure Washer 11
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
Remove muffler guard retaining bolts Pressure Washer 13
Remove muffler guard Pressure Washer 14
Remove spark plug Bonus: What is the purpose of the spark plug Pressure Washer 15
Remove head bolts Pressure Washer 16
Remove head Pressure Washer 17
Remove valve inspection cover bolts Pressure Washer 18
Remove valve inspection cover Pressure Washer 19
Disconnect high pressure hose Pressure Washer 20
Disconnect inlet hose Pressure Washer 21
Disconnect soap hose Pressure Washer 22
Loosen engine retaining bolts Pressure Washer 23
Remove engine Two people required Pressure Washer 24
Remove pump to engine fastening bolts Pressure Washer 25
Remove engine cover bolts Pressure Washer 26
Remove engine cover Pressure Washer 27
Remove Camshaft Pressure Washer 28
Bonus: what is the function of the keyseat? Camshaft Pressure Washer 29
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Remove Valve Push - Rods Pressure Washer 31
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Determine function of object being pointed at Bonus: what is the function of the governor? Pressure Washer 34
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
Prepare to reassemble Pressure Washer 36
Reassemble engine valves Bonus: Which valve is Intake / Exhaust? Pressure Washer 37
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
Bonus: what is the importance of the timing mark? Replace camshaft Ensure that the timing marks are lined up Pressure Washer 39
Replace governor Pressure Washer 40
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
Replace engine cover Pressure Washer 42
Replace engine cover bolts Pressure Washer 43
Reattach pump to engine Bonus: what is the significance of the mark or number on the head of the bolts? Pressure Washer 44
Mount engine to chassis Pressure Washer 45
Reattach soap hose Pressure Washer 46
Reattach the inlet hose Pressure Washer 47
Bonus: what is the purpose of the black plastic fitting? Reattach high pressure hose Pressure Washer 48
Replace valve inspection cover Pressure Washer 49
Replace valve inspection cover bolts Pressure Washer 50
Replace head Hand tighten bolts DO NOT Replace the top three (3) bolts yet. Pressure Washer 51
Replace spark plug Pressure Washer 52
Replace muffler guard Pressure Washer 53
Replace gas tank Hand Tighten the top three (3) head bolts Pressure Washer 54
Attach Hose Replace gas cap Pressure Washer 55
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
Torque the head bolts to 120 in-lbs. Follow the proper torque sequence. Pressure Washer 57
Replace housing Pressure Washer 58
Replace housing bolts Pressure Washer 59
Replace cover Pressure Washer 60
Replace cover bolts Pressure Washer 61
Attach spark plug wire Pressure Washer 62
Ensure no optional parts remain on workbench Pressure Washer 63
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