Changing A Bar Stud; Changing The Crankshaft Seals; Crankcase Disassembly; Crankcase & Crankshaft - Husqvarna 50 Workshop Manual

Crankcase
&Crankshaft

Changing a Bar Stud

Empty and rinse out the oil tank. Using a drift, tap the bar stud
into the oil tank. Extract the stud through the oil filler opening.
Insert a smaller diameter wire through the bar stud hole in the
crankcase and out the oil filler opening. Wrap the end of the
wire around the bar stud threads, then guide the stud through
the oil tank and stud hole. Remove the wire. Place a sleeve
or washers over the stud. Thread a stud nut down onto the
stud to pull the stud into its seat.

Changing the Crankshaft Seals

The crankshaft seaIs are accessible after removing the
flywheel as instructed in section 6. Ignition System and
the oil pump as instructed in section 8. Chain Lubrication
System. The seals can be pried out using a suitable
screwdriver. Be careful not to scratch or damage the
crankshaft during seal removal.
Always use new crankshaft seals for assembly. Begin
with the ignition side. Apply grease to the crankshaft seal
lip and carefully slide the seal over the end of the crank-
shaft. The open side of the seal must face inward. Drive
the seal into the crankcase using tool P/N 5025079-01
until the seal is flush with the crankcase. Install the drive
side crankshaft seal in the same manner. Reverse
disassembly procedure for the remainder of assembly.

Crankcase Disassembly

Remove the oil pump, flywheel, piston and cylinder as
described in the appropriate sections. Remove the four
rubber elements and separate the crankcase from the
tank.