Kymco MO MXer50 Service Manual - chap 12 (ruota freno sospensione ant)
12. FRONT WHEEL/FRONT BRAKE/FRONT
SUSPENSION/STEERING SYSTEM
12-0
MX’er 50
12
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
FRONT WHEEL/FRONT BRAKE/
FRONT SUSPENSION\STEERING SYSTEM
__________________________________________________________________________________
SERVICE INFORMATION -------------------------------------------- 12- 2
TROUBLESHOOTING ------------------------------------------------- 12- 3
FRONT WHEEL--------------------------------------------------------- 12- 4
FRONT BRAKE --------------------------------------------------------- 12- 7
FRONT SUSPENSION ------------------------------------------------- 12- 9
STEERING SYSTEM--------------------------------------------------- 12-13
12
12. FRONT WHEEL/FRONT BRAKE/FRONT
SUSPENSION/STEERING SYSTEM
12-1
MX’er 50
12. FRONT WHEEL/FRONT BRAKE/FRONT
SUSPENSION/STEERING SYSTEM
12-2
MX’er 50
SERVICE INFORMATION
GENERAL INSTRUCTIONS
• Remove the machine frame covers before removing the front wheel. Jack the machine front wheel
off the ground and be careful to prevent the machine from falling down.
• During servicing, keep oil or grease off the brake drum and brake linings.
• Inspect the brake system before riding.
SPECIFICATIONS
Item
Standard (mm)
Service Limit (mm)
Radialæ2.0
Axialæ2.0
Front brake drum I.D
110
111
Front brake lining thickness
4
1.5
Tie rod length
266.5
æ
Rod-end (tie rod) angle
180ºæ
TORQUE VALUES
Steering stem nut 6.0_ 8.0kgf-m
Swing arm nut 4.0_ 5.0kgf-m
Front wheel nut 6.0_ 8.0kgf-m
Front wheel hub nut 6.0_ 8.0kgf-m
Front shock absorber upper
mount bolt 3.5_ 4.5kgf-m
Front shock absorber lower
mount bolt 3.5_ 4.5kgf-m
Front wheel rim run out
12. FRONT WHEEL/FRONT BRAKE/FRONT
SUSPENSION/STEERING SYSTEM
12-3
MX’er 50
SPECIAL TOOLS
Oil seal and bearing install E014
TROUBLESHOOTING
Hard steering (heavy) Front wheel wobbling
•Insufficient tire pressure • Bent rim
• Excessive wheel bearing play
• Bent spoke plate
• Faulty tire
Steers to one side or does not track straight • Improperly tightened axle nut
• Uneven front shock absorbers Soft front shock absorber
• Bent front arm • Weak shock springs
• Bent steering knuckle • Insufficient damper oil
Poor brake performance Front shock absorber noise
• Incorrectly adjusted brake • Slider bending
• Worn brake linings • Loose arm fasteners
• Contaminated brake lining surface • Lack of lubrication
• Worn brake shoes at cam contacting area
• Worn brake drum
• Poorly connected brake arm
12. FRONT WHEEL/FRONT BRAKE/FRONT
SUSPENSION/STEERING SYSTEM
12-4
MX’er 50
FRONT WHEEL
REMOVAL
Place the machine on a level place.
Remove four nuts attaching the wheel panel
and front wheel.
Elevate the front wheels by placing a
suitable stand under the frame.
Remove the cotter pin.
Remove nut attaching the wheel hub and
washer.
Remove the collar and wheel hub.
FRONT BRAKE DISASSEMBLY
Loosen the lock nut and tighten the adjuster
nut at brake lever. (Refer to the “FRONT
BRAKE ADJUSTMENT” section in the
CHAPTER 3.).
Disconnect the front brake cable from brake
cam lever and remove the brake panel.
Remove the brake shoes.
REMOVE
Remove brake shoes and springs.
Remove the bolt attaching camshaft lever
and remove camshaft lever.
Remove the wear indicator, camshaft and O-
rings
Pin
Nut
Camshaft lever
Brake Cable
Brake Panel
Support the machine securely so there is
no danger of it falling over.
°Ø
Wheel Hub
Front Wheel
Wheel Panel Nuts
Collar
Hub Nut
Nuts
Washer
Wear
Indicator
Brake Panel
Brake Shoes
O-rings
Springs
Brake Shoes
12. FRONT WHEEL/FRONT BRAKE/FRONT
SUSPENSION/STEERING SYSTEM
12-5
MX’er 50
Measure the wheel run out.
Replace wheel or check bearing play if out
of specification
Rim run out limits:
Vertical: 2.0mm
Lateral: 2.0mm
Inspect the front wheel hub.
Replace if cracks or damage.
Inspect the front brake drum.
Measure the front brake drum I.D.
Service limits: 111mm
FRONT WHEEL BEARING
Remove the side collar.
Side Collar
Keep oil or grease off the brake drum.
°Ø
Loading...