DAELIM BESBI SC125 -, Service Manual

Page: 113 / 188

11-1
11. TRANSMISSION/CRANK SHAFT/CRANK CASE
SERVICE INFORMATION
GENERAL SAFETY
This section describes how to remove the crank case and to maintain the transmission and the crankshaft.
Service transmission without removing the engine from the vehicle. However, to prevent damage to the LH. crank case,
remove the engine and disassemble the rear brake prior to changing the LH. crank case bearing.
Always use special tools to change the drive shaft. Fix the bearing inner race, and install the shaft.
The following parts must be removed prior to removing the crank case. Follow the removal procedure specified in each
section.
-OIL PUMP ( SECTION 2 )
-CARBURETOR ( SECTION 5 )
-ENGINE ( SECTION 6 )
-CYLINDER HEAD/ CYLINDER/ PISTON ( SECTION 9 AND 10 )
-AC GENERATOR ( SECTION 8 )
-DRIVE PULLEY ( SECTION 7 )
-CLUTCH/DRIVEN PULLEY ( SECTION 7 )
The following parts must be removed prior to changing the LH. crank case. Follow the removal procedure specified in
each section.
-TRANSMISSION
( SECTION 11 )
-BRAKE
( SECTION 14 )
To assemble the crank case and crankshaft, set the special tool to the inner race of the crankshaft bearing, and push and
assemble. Remove the bearing from the crankshaft during disassembling work, and insert a new bearing in the case.
Install the oil seal after the case is assembled.
SPECIFICATIONS
TRANSMISSION OIL
SERVICE INFORMATION 11-1
TROUBLE SHOOTING 11-2
TRANSMISSION 11-3
CRANK CASE REMOVAL 11-6
CRANK SHAFT REMOVAL 11-7
TRANSMISSION BEARING 11-8
CRANK SHAFT INSTALLATION 11-9
CRANK CASE INSTALLATION 11-10
0.1 ~ 0.35 mm
0 ~ 0.008 mm
0.55 mm
0.1 mm
0.1 mm
ITEM
CRANK SHAFT
LARGE END SIDE CLEARANCE
CONNECTING ROD BIG END
CRANKSHAFT SHAKING
RIGHT
LEFT
STANDARD VALUE SERVICE LIMIT
OIL CAPACITY 0.11 (Full capacity) 0.09 After oil change)
RECOMMENDED OIL DMC Pure mission oil or SAE 80W/90