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McCulloch 32CC TRIMMER, Руководство по обслуживанию, Страница: 15 / 18

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McCulloch 32cc Trimmer

13

4.5.

Remove the three screws that secure the engine 
cover, using a T-25 driver. See Figure 4.5.

NOTE: 

the screw on the exhaust side of the 

engine has a plastic washer.  The screw on the 
back side of the engine has a round steel 
washer.  The screw on the carburetor side of the 
engine cover has no washer.

4.6.

With the engine cover removed, the spark arres-
tor and muffler are accessible. See Figure 4.6.

4.7.

The spark arrestor is easily removed for cleaning 
or replacement using a phillips head screw-
driver, or a nut driver.

NOTE: 

The spark arrestor consists of a screen, 

a cover, and a screw.  It is available as a kit.

Figure 4.5

Screw

Round 
washer

Figure 4.6

Spark arrestor

  Muffler

4.8.

The muffler can be easily removed by unhooking 
the spring and bale that retain it.  See Figure 4.8. 

4.9.

Rotate the bale upward to liberate the muffler, 
muffler gasket, and port gasket.                        
See Figure 4.9. 

NOTE: 

The exhaust port provides an ideal win-

dow into the cylinder to inspect the condition of 
the piston skirt and the cylinder wall.

4.10. Bale fits just beneath the largest cooling fin on 

the cylinder, and hooks into the cylinder.  Rotate 
it to unhook it.

4.11. Clean the muffler and port if necessary, using 

care not to damage the piston or knock carbon 
into the cylinder.

Figure 4.8

      Hook on
     cylinder

  

Bale

Spring

Figure 4.9

Exhaust port

piston skirt

Содержание 32CC TRIMMER

Страница 1: ...tand and follow all instructions and common sense when working on power equipment This includes the contents of the product s Operators Manual supplied with the equipment No liability can be accepted for any inaccuracies or omission in this publication although care has been taken to make it as complete and accurate as possible at the time of publication However due to the variety of outdoor power...

Страница 2: ......

Страница 3: ... but the parts are different enough that they are not fully interchangeable See Figure 2 1 2 2 There is also a McCulloch version of the large tap n go head It is used on the straight shaft trimmers and rotates in the opposite direction of the small one Figure 2 1 McCulloch version of small tap n go 2 3 Another trimmer head that is used on McCulloch string trimmers resembles a cross between the MTD...

Страница 4: ...old them in place then pulled tight NOTE With the arrows aligned the line can also be installed from the inside out by removing the bump knob 2 10 The final step is to rotate the spool in the direc tion indicated by the arrows drawing the line into the head See Figure 2 10 2 11 Stop winding when each end of the line is about 6 long 2 12 Press the bump knob and pull on the line to manually test the...

Страница 5: ...rmal use 2 16 The housing is not fastened to the boom It sim ply rests over a hexagonal drive collar See Figure 2 16 Figure 2 13 Spring Tabs Ratchet wedges Ribs Figure 2 16 Drive collar 2 17 The ratchet wedges can be serviced by remov ing the three screws holding the black cover to the top of the housing See Figure 2 17 2 18 Carefully remove the springs and pull out the wedges See Figure 2 18 Figu...

Страница 6: ...ifferent approach 3 2 The throttle trigger stop switch and grip can all be removed from the boom in unit with the power head See Figure 3 2 3 3 To separate the powerhead from the boom remove the screw at the top of the grip using a T 25 driver then withdraw the boom See Figure 3 3 3 4 Remove the air filter cover using a T 25 driver to gain access to the connection between the throt tle cable and t...

Страница 7: ...culty of routing the throttle cable back through the housings a wire or string should be connected to the z fitting so that the throttle cable can be fished back into place Figure 3 5 Z fitting on end of throttle cable Throttle arm on carburetor 3 7 Remove the two screws from the trigger housing cover using a T 15 driver See Figure 3 7 3 8 Push the front part of the housing forward to remove it Se...

Страница 8: ...ws that fasten them together using a T 25 driver See Figure 3 12 3 13 Remove the grip and clutch housing and unplug the stop switch wires from their connections on the engine See Figure 3 13 NOTE Pay attention to the routing of the throttle cable and stop switch wires 3 14 Disconnect the H T lead from the spark plug and remove the spark plug using an 5 8 wrench 3 15 Pack the cylinder full of start...

Страница 9: ...drum Recoil rope used as a piston stop Figure 3 17 Crankshaft Clutch rotor Spade terminals for stop switch wires Throttle cable 3 18 The flat side of the clutch rotor seats against a tube that surrounds the crankshaft See Figure 3 18 3 19 With the clutch rotor removed the starter hous ing can be removed 3 20 Take out the four screws holding the starter housing to the engine using a T 25 driver See...

Страница 10: ...throttle cable could be discon nected from the engine by squeezing the tabs and removing it along with the starter housing See Figure 3 23 NOTE If a throttle cable needs replacement attach a line to the carburetor end of the old cable before removal to facilitate fishing the replacement cable into place 3 24 Remove the baffle from the starter housing using a T 25 driver NOTE The starter pulley is ...

Страница 11: ...arter pulley Spring cover Spring ends Figure 3 28 Starter spring in cartridge Notches engage end of spring Plastic shield 3 30 As the starter is reassembled apply a sparing amount of white lithium grease to the friction sur faces of the starter pulley 3 31 Pay close attention to the routing of the stop switch wires 3 32 Wind tension onto the starter rope after the pul ley is in place but before th...

Страница 12: ...sing a damaged flywheel presents a burst hazard 3 39 If the pawls are damaged they are available as a pair with mounting hardware in kit form See Figure 3 39 3 40 Release the retainers on the back side of the fly wheel to remove the starter pawls See Figure 3 40 3 41 After replacing the pawls or the flywheel care fully seat the key and flywheel back on the crankshaft 3 42 Install the nut and torqu...

Страница 13: ...ng throttle cable and stop switch wires and install the starter housing to the engine See Figure 3 45 Figure 3 43 Check air gap Male spade terminals for stop switch wires Figure 3 45 Stop switch wires Throttle cable 3 46 As the starter housing goes on connect the short lengths of stop switch wire that are inside the starter housing to the ignition module and clip the throttle cable into the hole i...

Страница 14: ...ousing 3 54 Install the power head on the boom 4 EXHAUST If the fuel oil mixture is too rich the exhaust port and muffler may accumulate deposits of carbon These deposits will hinder high R P M engine performance and increase operating temperatures Eventually they may lead to a no start situation There is a character istic flat tone to the exhaust noise that accompanies a blocked exhaust 4 1 The e...

Страница 15: ...ists of a screen a cover and a screw It is available as a kit Figure 4 5 Screw Round washer Figure 4 6 Spark arrestor Muffler 4 8 The muffler can be easily removed by unhooking the spring and bale that retain it See Figure 4 8 4 9 Rotate the bale upward to liberate the muffler muffler gasket and port gasket See Figure 4 9 NOTE The exhaust port provides an ideal win dow into the cylinder to inspect...

Страница 16: ...the scope of this manual but service information is available from Walbro and Zama the manufacturers whose carburetors are used on McCulloch products 5 1 The fuel filler cap contains a polymer stone tank vent If it becomes blocked the tank may pressurize when heat soaked flooding the engine 5 2 The opposite situation may occur if the engine is run with a blocked tank vent Air will be unable to ent...

Страница 17: ...el return line enter the tank through a black rubber grommet The grommet can be easily pried out or the tank for access to the fuel filter Figure 5 5 Line to carb Return line 5 10 If it is necessary to remove the fuel tank the air filter cover and engine cover must be removed as described elsewhere in this section 5 11 The case plug and case plug reinforcement plate must be removed using a T 25 dr...

Страница 18: ...McCulloch 32cc Trimmer 16 ...

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