Lippert GS-M120-370-FAB1 User Manual

The Lippert GS-M120-370-FAB1 is a 12-volt DC electric slide-out system motor designed for recreational vehicle applications, featuring a 370 lb-in torque rating, durable construction, and compatibility with various RV slide-out mechanisms. It includes key components for installation, operation, and maintenance. Below are essential sections covering safety, features, installation, operation, troubleshooting, and specifications.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Operation 6. Connecting to RV Systems 7. Maintenance Procedures 8. Safety Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: 12V DC motor, gear mechanism, mounting brackets, wiring harness, and control interface.

FeatureDescription
Motor Type12V DC permanent magnet
Torque Rating370 lb-in (inch-pounds)
Voltage Range10.5V - 14.5V DC
MountingStandard bracket with bolt holes
WiringColor-coded harness (red/black)
Gear RatioHigh-efficiency planetary gearbox
RotationBi-directional (extend/retract)
ProtectionThermal overload protection
CompatibilityRV slide-out systems
WeightApprox. 4.5 lbs (2.04 kg)

Installation

Unpack and inspect contents. Ensure proper tools and safety equipment are available.

  1. Disconnect RV battery: Turn off all power sources before installation.
  2. Mount motor: Align with existing slide-out mechanism; secure using provided bolts.
  3. Connect wiring: Attach red wire to positive (+), black wire to negative (-) terminals.
  4. Secure harness: Use zip ties to prevent loose wiring.
  5. Reconnect battery and test operation.

WARNING! Motor is heavy; use proper lifting techniques. Ensure all electrical connections are secure to prevent short circuits.

First-Time Setup

After installation, perform initial configuration and testing.

  1. Power on system: Ensure RV battery is fully charged (12.6V minimum).
  2. Test direction: Use control switch to verify extend/retract functions.
  3. Adjust limits: If equipped, set slide-out travel limits per RV manufacturer instructions.
  4. Lubricate: Apply recommended grease to gear mechanism.
  5. Perform full cycle test: Extend and retract slide-out completely.

CAUTION! Keep hands clear of moving parts during testing. Work on level surface.

Specifications

Controls and Operation

Motor is controlled via RV's existing slide-out switch system. No separate remote included.

Basic Operation: Use RV control panel switch to extend/retract slide-out. Motor will run while switch is held.

Automatic Stop: Built-in overload protection will stop motor if excessive current is detected.

Manual Override: Some systems include manual crank option for emergency operation.

Indicator Lights: RV control panel may show status lights for slide-out position.

Connecting to RV Systems

Motor connects to RV's 12V DC electrical system and slide-out control circuit.

  1. Turn off all RV power before connecting.
  2. Identify positive and negative wires from RV slide-out controller.
  3. Connect motor red wire to controller positive output.
  4. Connect motor black wire to controller negative/ground.
  5. Ensure all connections are tight and insulated.
  6. Test with multimeter: Verify 12V+ at motor terminals when switch is activated.

Tip: Use dielectric grease on connections to prevent corrosion.

Maintenance Procedures

Regular maintenance ensures optimal performance and longevity.

  1. Monthly inspection: Check mounting bolts for tightness.
  2. Lubrication: Apply lithium-based grease to gear mechanism every 6 months.
  3. Electrical check: Inspect wiring for damage or corrosion quarterly.
  4. Brush inspection: Replace carbon brushes if motor performance decreases (typically after 500+ hours).
  5. Bearing check: Listen for unusual noises indicating bearing wear.

WARNING! Disconnect power before performing any maintenance. Do not disassemble motor unless qualified.

Safety Features

Thermal Overload Protection: Automatically stops motor if overheating detected. Manual Override: Emergency crank capability on some systems. Circuit Protection: Requires fuse/circuit breaker in RV electrical system.

Care & Cleaning

Disconnect power before cleaning. Use dry cloth to remove dust and debris. For stubborn dirt, use mild detergent on cloth (not directly on motor).

CAUTION! Do not use high-pressure water or solvents. Keep ventilation openings clear.

Regulatory Information

Complies with RV industry standards. UL recognized components. FCC Part 15: Class B digital device. Copyright © 2025 Lippert Components, Inc. For technical support, visit www.lippert.com or contact 1-574-537-8900.

Troubleshooting

SymptomPossible CauseCorrective Action
Motor doesn't runPower loss/connectionsCheck battery voltage; inspect wiring connections; verify fuse.
Motor runs slowlyLow voltage/loadCharge RV battery; check for mechanical binding in slide-out.
Motor overheatsExcessive load/continuous useAllow cool-down period; check for obstructions in slide path.
Unusual noiseWorn gears/bearingsInspect gear mechanism; lubricate; contact service if noise persists.
Intermittent operationLoose wiring/switchTighten all connections; test control switch continuity.

Reset: Disconnect power for 5 minutes to reset thermal protection.

Service: 1-574-537-8900; www.lippert.com

Lippert GS-M120-370-FAB1 User Manual © - All Rights Reserved 2025