Team Losi Aftershock Operation Manual page 6

Replacing the 2-Speed Gears
Replacing the Clutch Bell
Use a 3/32" wrench (provided) to remove the retaining screw (turn counterclockwise) while firmly holding the flywheel
with a pair of pliers. Remove the screw, washers and clutch bell, being careful not to lose any shims that may be used.
Remove the ball bearings and brush any loose dirt away from the bearing faces. Put only ONE drop of oil on the inside
face (the side facing away from the clutch shoes) near the inner race of the bearing. Install the bearings into the new
clutch bell. Before replacing the clutch bell, wipe out the inside with motor spray, lacquer thinner or a similar cleaner (do
not use fuel or oil-based solvents). Replace the clutch bell and secure with the retaining screw in the same manner used to
remove it.
Note: Do not over-tighten the screw, as it is not necessary.
Be sure to replace the one-way
bearing in the same direction as
removed.
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Servicing the Differentials
The differentials should be serviced periodically. Be sure to clean and inspect all of the gears and replace if severely worn.
Always use plenty of high-quality grease (like Losi LOSA3066 or LOSA99203) on all gears.
Note: These can also be made into racing-type viscous diffs as noted below. Always service one diff at a time and pay close
attention to installing the housing with the "TOP" marking up so it can be seen looking down on the chassis.
Removing the Differentials
Fig 1.
• Remove the two screws in the bottom at the extreme end of the chassis (fig1).
• Remove the four screws in the bulkhead allowing the bumper/skid plates and pin mounts to be
removed (fig 2).
• Remove the diff retainers and slide the diff out (fig 3). NOTE: On the front end only you will have to remove the lower
front shock attachment screws and swing the shocks up and out of the way. On the rear end you will need to "pop"
off the rear camber links.
Differential Service
• Remove the three 5/64" cap head screws and the top of the differential housing, then the diff.
• Remove the four 5/64" flat head screws from the ring gear allowing it to be removed.
• Inspect the ring and pinion gears for wear; replace if necessary.
• Remove the cross shafts, bevel gears and shims for the carrier.
• Clean and inspect all parts; replace as needed.
• Check all ball bearings. Clean or replace as necessary.
• Remove pins from outdrives. Remove outdrives, regrease and reinstall.
• Lube all shafts and gears with LOSA3066 or LOSA99203 assembly grease and
reassemble.
• Load cross shafts with gears into the carrier with extra grease. Apply the rubber gasket
to the carrier and reinstall ring gear.
• Lube ring and pinion with grease and reassemble diff into diff housing.
• Reinstall into chassis with "TOP" on housing facing up.
IMPORTANT:
Always reinstall the
thin gasket.
Fig 2.
Fig 3.
For Viscous Differential
Instead of grease you can use silicone fluid in the differential
for a limited slip feel as desired for racing. Simply fill the diff up
to the top of the gears before replacing the ring gear. (Be sure
to reinstall the gasket). You may have to replace the O-rings
on the outdrives at the same time you change to this type of
differential if the old ones are worn. A popular silicone fluid for
your model is Losi 10,000cs (LOSA5282) and is available from
your local hobby dealer.
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