Mitsubishi Escalator Comb Plate J651012B203-02 / 01

J651012B203-02 / 01 is commonly used in Mitsubishi escalator entrance and exit safety systems.

The comb plate is installed at the landing section of the escalator where the step chain enters the comb area.

This component is mainly associated with:

• passenger safety protection
• step-to-comb alignment
• escalator entrance transition
• debris protection area

Usually applied in commercial escalators with continuous daily passenger traffic.

Common Field Situation

In shopping malls and metro station projects in Thailand and Qatar, comb plate wear may gradually increase after long-term operation under heavy traffic conditions.

Typical situations may include:

• broken comb teeth
• abnormal vibration near landing area
• unusual noise during step entry
• step-to-comb misalignment
• passenger safety switch triggering intermittently

During maintenance work, technicians sometimes inspect both the comb plate and comb impact switch together.

Why Comb Plate Condition Matters

The comb plate directly affects:

• passenger entry safety
• step transition smoothness
• escalator landing stability
• foreign object protection

If the comb gap becomes abnormal, escalator vibration and impact noise may gradually increase.

Because of this, comb plate inspection is usually part of regular escalator safety maintenance.

Practical Maintenance Notes

In several modernization projects in Eastern Europe, maintenance companies replace damaged comb plates after long-term operation because worn comb teeth may affect passenger safety and escalator appearance.

Some service teams also replace:

• comb fixing bolts
• comb impact switches
• yellow safety markings

together during refurbishment work.

FAQ

Why do escalator comb teeth break after long-term use?

Heavy passenger traffic, impact force, and foreign object contact may gradually damage the comb structure.

Can damaged comb plates affect escalator safety?

Yes. In some escalator systems, damaged comb sections may increase vibration and trigger safety protection systems.

Installation Notes

Before replacement:

• comb plate width should match original escalator specification
• tooth alignment must correspond with step structure
• fixing position should be checked carefully after installation

Some Mitsubishi escalators use different comb plate structures depending on step width and escalator generation.