Track roller in-depth maintenance manual
✓ Mud removal: Use a pointed hook to clean the groove of the wheel body (must be done after daily operation)
✓ Chemical cleaning: Soak the bearing position with diesel Lubricated every month (strong acid and alkaline solvents are prohibited)
▶ Grease injection standard:
NLGI 2# lithium-based grease (-30℃~120℃ working conditions)
Single wheel grease injection amount 15-20ml (with Lubricated gun pressure gauge reading reference)
▶ Rainy season countermeasures:
Superimpose waterproof sealing grease
▷ Axial clearance:
New parts standard: 0.8-1.5mm
Limit value: 3mm (with feeler gauge usage diagram)
▷ Radial runout:
Laser detector deviation＞1.2mm needs to be corrected
|
Abnormal phenomenon |
Possible causes |
Emergency treatment plan |
|
Heat on one side of the wheel |
Bearing stuck (temperature > 90°C) |
Stop the machine immediately and inject cooling grease |
|
Lubricated leakage in the form of jets |
Frame Lubricated seal rupture |
Replace the sealing components within 48 hours |
|
Abnormal noise accompanied by vibration |
Raceway peeling (ferrography analysis) |
Stop and disassemble to avoid secondary damage |
Ⅲ. Professional maintenance plan (to enhance the authority of EAT)
➤ Modification plan:
Original single lip seal → double lip spring seal (waterproofness increased by 70%)
Recommended brands: Japan NOK or Germany CFW
➤ Ultrasonic cleaning + hot melt grease reconditioning technology (extend life by 50%)
➤ Install wireless temperature sensor (recommended: Fluke 3563)
➤ Data abnormalities are automatically pushed to maintenance personnel APP
Ⅳ, Maintenance cycle matrix table (adapt to different working conditions)
|
Working condition type |
Inspection cycle |
Lubrication cycle |
Seal detection |
|
Conventional earthwork |
250h |
50h |
500h |
|
Mine crushing environment |
120h |
30h |
200h |
|
Seawater immersion scenario |
72h |
24h |
100h |
