APOLLO S1800-3i Travel Speed Potentiometer Multi-Turn Paving Speed Control for Asphalt Pavers

APOLLO S1800-3i Travel Speed Potentiometer Multi-Turn Paving Speed Control for Asphalt Pavers

Product introduction

The APOLLO S1800-3i travel speed potentiometer is the rotary control the operator uses to set how fast the paver travels while laying mix. Turning the knob changes the resistance value sent to the machine controller, and the controller translates that value into a proportional drive command. Because paving speed sets the mat thickness and the joint quality, a worn potentiometer shows up directly in the finished surface rather than as an obvious electrical fault.

Failure symptoms on site

• Speed creep: the paver slowly changes speed with the knob untouched, producing thickness variation along the mat.
• Dead band or jump: the machine does not respond until the knob is turned far, then takes off suddenly.
• Intermittent drop-out: drive stops for a fraction of a second when the machine passes over rough ground, a classic sign of a worn carbon track.
• No response at either end: the setting range is compressed, so the crew cannot reach the slow speeds needed for joints and tie-ins.
• Mechanical play: the shaft feels loose or notchy, or the knob no longer holds its position under vibration.

Key features

• Multi-turn adjustment: fine resolution across the full speed range, which allows small corrections during a joint without overshooting.
• Wear-resistant carbon track: the resistive element is built for continuous operation in a control panel exposed to vibration and temperature swing.
• Direct replacement: shaft, mounting and wiring arrangement match the original part, so the panel can be returned to service without modification.
• Steel and metal construction: mechanical parts hold adjustment under paving vibration instead of drifting with the machine.
• Straightforward installation: fits the standard paver control panel cut-out and accepts the original connector.

Technical specifications

Replacement and setting notes

Before removing the old unit, mark the knob position and photograph the wiring. After fitting the new potentiometer, run the machine at the lowest working speed and check that travel speed rises and falls smoothly through the full range without dead spots. Confirm the value on the machine display matches the knob position, then re-check after the first hour of paving, since a new track settles slightly in the first operating cycle.

Ordering information