Top 5 Diagnostic Problems on Construction Equipment…

Top 5 Diagnostic Problems in Construction Equipment and Their Quick Solutions

Is your construction equipment suddenly stopping at the worst possible moment? đźšś
Whether it’s a Caterpillar excavator, a JCB loader, or a Volvo grader, construction equipment diagnostic problems are common. Every downtime minute costs money and delays projects. Fortunately, with the right tools like Jaltest INFO Web, you can diagnose issues faster and keep your fleet operational. Below are the top 5 diagnostic problems in construction equipment and practical ways to solve them quickly.

1. Hydraulic Failures in Construction Equipment

Hydraulic circuits are the heart of heavy machines. When pressure is unstable or movement slows, the entire system may become unresponsive.
Common causes include:

  • Low fluid level or contaminated oil
  • Clogged filters
  • Leaks in hoses
  • Failing pumps or valves

Quick Solution with Jaltest INFO Web:
âś… First, check fluids and filters
âś… Then, read live hydraulic pressures
âś… Test actuators and solenoids
âś… Finally, repair or replace faulty components

👉 Time saved: Jaltest’s built-in OEM data allows instant comparison with expected hydraulic pressure values, avoiding guesswork.

2. Emission System Faults (DPF / SCR)

Modern off-highway machines rely on emission systems that can sometimes trigger errors unexpectedly.
Common causes include:

  • Incomplete regeneration
  • Faulty NOx or pressure sensors
  • Contaminated AdBlue
  • Stuck EGR valve

Quick Solution:
đź”§ Perform guided forced regeneration
đź”§ Check sensors and valves
đź”§ Replace faulty components

👉 Tip: With Jaltest, regeneration can be completed safely without unnecessary DPF disassembly.

3. CAN Bus Communication Errors in Construction Equipment

Multiple system failures often point to network communication issues.
Common causes include:

  • Damaged wiring harness
  • Oxidized connectors
  • Grounding faults
  • Faulty ECU

Quick Solution with Jaltest:
🔍 Scan all modules at once
🔍 Visualize the network topology
🔍 Quickly identify inactive modules

👉 Advantage: Jaltest’s CAN map reduces troubleshooting time significantly.

4. Transmission Failures

Transmission issues directly affect machine mobility and performance.
Common causes include:

  • Old or insufficient oil
  • Internal clutch wear
  • Faulty sensors or solenoids
  • Improper calibration

Quick Solution:
đź§° Start by checking oil level and condition
đź§° Then test sensors and solenoids
đź§° Finally, perform automatic calibration

👉 Benefit: Jaltest avoids full disassembly thanks to its guided calibration tools.

5. Engine Power Loss

Engines that lose power or consume excess fuel can have multiple underlying problems.
Common causes include:

  • Clogged injectors
  • Leaking turbocharger
  • Faulty pressure or temperature sensors
  • Air intake issues

Quick Solution:
đź’¨ Read engine fault codes first
đź’¨ Perform cylinder cut-out tests
đź’¨ Analyze pressure and air leaks

👉 Key to success: Real-time data helps distinguish mechanical issues from electronic faults.

Conclusion: Diagnose Faster, Work Smarter

Breakdowns are inevitable, but long downtimes can be prevented. By centralizing fault codes, wiring diagrams, procedures, and live data, Jaltest INFO Web saves you:

âś… Time
âś… Money
âś… Autonomy in repairs

👉 Try Jaltest today and see how faster diagnostics can reduce downtime for your construction equipment.

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