Mucking Loader Maintenance FAQ

Q1: What maintenance cycles should I follow for the mucking loader?
A: Do daily, weekly, monthly and yearly checks.
Daily: Clear rock debris. Check hydraulic oil level, leaks, tracks and pivot grease. Test emergency stop and lights.
Weekly: Tighten bolts. Clean hydraulic filter. Inspect conveyor and pick teeth for wear.
Monthly: Check hoses and seals. Service motor and cables. Adjust track tension.
Yearly: Full machine overhaul. Replace hydraulic and gear oil. Check motors and cylinders.
Q2: How often to change hydraulic oil? What oil works for underground mines?
A: Change oil after first 100 working hours on new machines. Then replace every 500‑600 hours. For dusty underground conditions, shorten to 400 hours. Use anti‑wear hydraulic oil. Replace immediately if oil turns cloudy or milky, and clean tank and filters.
Q3: Which points need daily grease lubrication?
A: All pivot joints on boom, arm, bucket and conveyor frame. Lack of grease will wear shafts and bushings quickly and raise repair costs.
Q4: How to maintain the track system?
A: Clear stones stuck in track links every shift. Keep proper track sag. Too loose causes derailment; too tight speeds up wear. Adjust track tension cylinder regularly and check track bolts.
Q5: Machine is slow or lacks power. What is wrong?
A: Mostly hydraulic issues. Low or degraded oil, clogged suction filter, air inside lines or worn hydraulic pump. Check oil level and clean filters first. Do not adjust relief valve pressure without professional guidance.
Q6: Cylinder drifts or creeps down by itself
A: Internal seal wear inside cylinder. Release pressure before disassembly. Replace oil seals and guide sleeves. Never take apart hydraulic lines under pressure.
Q7: Scraper chain gets stuck or makes noise
A: Remove large rock blockages. Set proper chain tension. Check scraper pins. Change worn parts early to avoid chain breakage.
Q8: Key electrical maintenance for explosion‑proof underground mucking loader
A: Keep explosion‑proof boxes well‑sealed. Protect cables from crush damage. Clean motor dust. Verify emergency stop and lamps work well. Prevent water ingress to avoid explosion risks.
Q9: Short‑term and long‑term storage tips
A: Short‑term: Lower bucket to ground and release hydraulic pressure, clean machine.
Long‑term: Fill up hydraulic oil, grease all pivots, retract cylinder rods. Cover machine in dry shelter. Cut power. Run machine on idle for a few minutes periodically.
Q10: Safety rules during maintenance
A: Lower bucket fully, cut power and release hydraulic pressure before service. Do not disconnect hydraulic fittings under pressure. Follow local mine safety standards when working underground.