Maintenance & Operator Training
Tracked mobile crushing equipment operates in abrasive, high-load conditions. Maintenance is not optional — it is the direct determinant of equipment availability, wear part lifespan, and whether the two-year warranty remains valid. This page sets out SUHMAN's recommended maintenance framework and the operator training provided with every unit.
Maintenance Philosophy
The maintenance requirements for SUHMAN equipment follow a predictable schedule. Most unplanned downtime in crushing operations results from deferred routine maintenance — not from equipment failure in isolation. Bearing failures, hydraulic leaks, and structural cracking are almost always preceded by observable warning signs that routine inspection would have caught.
SUHMAN provides a full maintenance manual with every unit. The schedule below reflects the manual's structure. Where site conditions are more severe than standard — highly abrasive material, extreme temperatures, high operating hours — intervals should be shortened accordingly.
Routine Maintenance Schedule
Daily Before each operating shift
- Visual inspection of jaw plates, blow bars, or cone liners for wear depth
- Check all fasteners on crusher frame and liner mounting for looseness
- Inspect hydraulic hoses, fittings, and cylinders for leaks
- Check hydraulic oil level
- Inspect conveyor belts for tracking, tension, and surface condition
- Check tracked undercarriage for tension and visible damage
- Verify all guards and covers are in place before startup
- Confirm no-load startup is normal before introducing material
Weekly 7-day interval
- Grease all bearing points according to the lubrication chart in the manual
- Check jaw plate wear measurement against replacement threshold
- Inspect toggle plate and toggle seat condition
- Check screen mesh for blocked apertures or wire fatigue
- Inspect electric motor or engine for abnormal noise, temperature, or vibration
- Check belt conveyor fasteners and splices
Monthly 30-day interval
- Full hydraulic system check: oil condition, filter element, pressure readings at test points
- Inspect crusher chamber geometry — check for uneven wear patterns indicating feed segregation or incorrect setting
- Check and re-tension all bolted connections on chassis and crusher module
- Inspect track rollers, idlers, and drive sprockets for wear
- Test all safety systems: emergency stop, overload protection, belt drift switch
At Wear Part Replacement Each replacement event
- Record operating hours at replacement — this is the basis for predicting future replacement intervals
- Inspect mating surfaces and seats before fitting new parts
- Verify torque on all retention fasteners after fitting
Wear Parts Management
Wear parts in crushing equipment consume predictably. The variables are material hardness, feed size distribution, crusher setting, and operating hours. SUHMAN's after-sales team can assist in estimating replacement intervals based on your specific material and operating conditions at commissioning.
Key wear indicators by component:
Jaw Plates
Measure tooth height at the lowest point of the corrugation profile. Replace when wear reaches the threshold specified in the manual. Do not wait for tooth profile to disappear entirely — output size consistency degrades before visible failure.
Blow Bars (Impact Crusher)
Measure bar height at the midpoint. Rotate bars at the interval specified in the manual to equalise wear before replacement. Asymmetric wear indicates uneven feed distribution.
Cone Liner (Mantle and Concave)
Monitor power draw — increasing draw at constant feed rate indicates liner wear. Replace when minimum liner thickness is reached, as specified in the manual.
Screen Mesh
Inspect for blinded apertures and wire fatigue cracking. Replace when open area drops below effective threshold or wire breakage is observed.
Hydraulic System Maintenance
The hydraulic system controls crusher setting adjustment, folding conveyor operation, and tracked chassis drive. Hydraulic faults are among the more disruptive failures in mobile crushing operations because they affect multiple functions simultaneously.
Recommended hydraulic maintenance:
Check oil level daily before startup
Sample and test hydraulic oil condition at the interval specified in the manual — do not rely on visual inspection alone
Replace filter elements at the specified interval, or earlier if the filter condition indicator is triggered
Inspect all hose assemblies for abrasion, kinking, and fitting integrity at each weekly service
After any hydraulic component replacement, bleed the system and verify pressure at test points before returning to operation
Maintenance Records
SUHMAN recommends maintaining a written maintenance log for each unit, recording:
- Date and operating hours at each service
- Parts inspected and condition noted
- Parts replaced, with part number and source
- Any abnormal findings and corrective action taken
A maintenance log is the primary evidence base for warranty claims. Where a failure occurs and no maintenance record exists, establishing the cause and warranty eligibility becomes significantly more difficult.
Operator Training
SUHMAN provides operator training with every unit. Training is not a brief handover — it is a structured session covering both routine operation and the maintenance tasks that operators are expected to carry out independently.
Training covers:
Operation
- Equipment startup and shutdown sequence
- Crusher setting adjustment and output size control
- Feed rate management — recognising and responding to overloading
- Tracked chassis operation and repositioning
- Control system navigation and alarm interpretation
Daily Maintenance
- Pre-shift inspection routine
- Lubrication points and greasing procedure
- Identifying abnormal conditions during operation: noise, temperature, vibration, hydraulic pressure
Safety
- Isolation and lockout procedure before any maintenance work
- No-entry zones during operation
- Emergency stop location and function
- Handling blocked crusher chamber — procedure and prohibitions
Format
Training is conducted on-site at commissioning where a SUHMAN engineer is present. Where on-site deployment is not arranged, training is conducted via structured remote session using the equipment manual and video reference material as the basis.
Ongoing Support
After the initial training period, SUHMAN's technical support team is available for maintenance-related queries. Contact is via WhatsApp or phone, 24 hours a day, seven days a week.
For maintenance issues that cannot be resolved remotely, on-site service can be arranged. See the After-Sale Service page for detail.