1141

Check Reservoir Level Visually

Open electrical cabinet and locate the way lubrication reservoir tank. Visually inspect oil level against minimum mark on tank.

Ensure machine is powered down and locked out before opening electrical cabinet

Refill with Correct Lubricant

Add Haas-approved way oil (typically ISO 68 viscosity) to reservoir until level reaches maximum fill line. Do not overfill.

Use only Haas P/N 93-32-5051 way oil or equivalent ISO 68 lubricant to maintain warranty compliance

Reset Alarm and Test

Press RESET to clear alarm 1141. Navigate to CURRENT COMMANDS and verify automatic lube cycles resume normal operation.

Monitor for 2-3 automatic lube cycles to ensure float switch is functioning properly

Inspect Float Switch Operation

With adequate oil level confirmed, gently move the float switch up and down to check for mechanical binding or contamination buildup.

Power down machine before manipulating float switch components

Test Switch Continuity

Using multimeter, check continuity across float switch terminals with float in up and down positions. Should show open/closed states clearly.

Typical float switch resistance should be <1 ohm closed, >10k ohm open

Clean or Replace Switch

Clean float mechanism with degreaser if contaminated, or replace entire float switch assembly if electrically failed.

Haas float switches are typically standard industrial components - verify part number before ordering replacement

Inspect Wiring Connections

Check all connections from float switch to control cabinet for looseness, corrosion, or physical damage. Verify secure connection at terminal strips.

Use lockout/tagout procedures before inspecting electrical connections

Check Signal at Control

Access DIAGNOSTICS > INPUTS and locate the way lube level input signal. Verify signal state changes when float is manually actuated.

Input signal should toggle between 0 and 1 when float switch is manually operated

Repair Wiring if Needed

Replace damaged wire sections, clean corroded terminals, and ensure all connections are tight and properly secured.

Use marine-grade electrical connections in areas exposed to coolant or cutting fluid splash

Check Lubrication Parameters

Navigate to SETTING > PARAMETERS and review lubrication timing parameters (typically 140-149 range) for excessive frequency or duration settings.

Standard lube interval is usually 8-12 hours of run time, with 2-4 second pump duration

Inspect for External Leaks

Check all way surfaces, ballscrew covers, and lubrication lines for signs of oil leakage or over-application of lubricant.

Clean up any oil spills immediately to prevent slip hazards

Verify Oil Quality

Check oil condition for contamination, water, or degradation that might require more frequent changes and higher consumption rates.

Contaminated way oil should be completely drained and system flushed before refilling with fresh lubricant