Heli-Max HMXE0250 - Manual (Page 7)

7
Note: You will need to lock the crankshaft while tightening
the clutch and nut. We recommend using a O.S. Crankshaft
Clamp .32-.46 (OSMR1004) as shown above.
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1. Remove the nut from the end of the engine’s crankshaft
but leave the large flat washer resting against the front ball
bearing. The large washer (10x16mm) included in the kit is
only used if your engine did not include one.
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2. Slide the clutch bell onto the stepped end of the clutch
and test fit the assembly on the engine. Once you verify
everything threads on properly, remove the clutch and bell.
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3. Apply thread lock to the crankshaft of the engine and
thread the clutch onto the engine. Use a thick piece of
cardboard to protect the crankshaft and tighten the clutch
using a screwdriver as shown in the picture above.
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4. Install the fan on the engine. Make sure the key on the
bottom of the fan lines up with the slots in the clutch. Place
the 6.5x13mm washer on the crankshaft, apply some thread
lock to the crankshaft threads and install the original
crankshaft nut. Using a crankshaft clamp and a 7/16" [11mm]
wrench, tighten the nut down against the fan. Re-install the
engine’s backplate.
❏
5. Using a 2.5mm hex driver remove the two engine mount
bolts from the right side of the frame. Remove the right side
frame and fuel tank for now.