135

Check Way Oil Reservoir Level

Open electrical cabinet and visually inspect the way oil reservoir tank level. The tank should be filled to the marked level line.

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

Refill Way Oil Reservoir

Add Haas-approved way oil (typically ISO 68 slideway oil) to the reservoir until it reaches the proper fill level marked on the tank.

Use only Haas-recommended way oil to prevent compatibility issues with seals and pumps

Reset Alarm and Test

Press RESET to clear alarm 135, then cycle machine power. Monitor for proper way lube operation during next few cycles.

Check parameter 800 (Way Lube Timer) to verify proper lubrication timing intervals

Inspect Float Switch Operation

With adequate oil level confirmed, manually lift and lower the float switch to check for smooth movement and proper electrical contact.

Disconnect power before handling electrical components

Test Float Switch Continuity

Using multimeter, test continuity across float switch terminals in both up and down positions. Should show open circuit when float is up (adequate oil level).

Check wiring connections at float switch for corrosion or loose terminals

Replace Float Switch if Faulty

If float switch fails continuity test or is mechanically stuck, replace with Haas part number specific to your machine model.

Apply thread sealant to new float switch threads to prevent oil leakage

Inspect for External Leaks

Check all way lube lines, fittings, and connections for visible oil leaks. Pay attention to areas around the way lube pump and distribution manifold.

Use flashlight to inspect hard-to-see areas behind the spindle head and under covers

Check Way Surface Oil Distribution

Manually activate way lube system through MANUAL mode and observe oil distribution on machine ways. Look for excessive pooling or missing lubrication zones.

Access way lube manual control through HANDLE JOG > AUX > WAY LUBE on NGC control

Repair Identified Leaks

Tighten loose fittings or replace damaged way lube lines using proper hydraulic fittings. Ensure all connections are properly sealed.

Use only approved way oil compatible fittings to prevent future leaks

Check Way Lube Filter Condition

Locate and inspect the way lube system filter (typically in reservoir or inline). Replace if clogged or contaminated with debris.

Replace way lube filter every 2000 hours or per Haas maintenance schedule

Test Way Lube Pump Operation

Monitor way lube pump operation during automatic cycle. Pump should activate according to parameter 800 timing and produce consistent pressure.

Check parameter 801 (Way Lube Dwell) to ensure adequate pump run time for proper distribution

Verify System Pressure

If equipped with pressure gauge, verify way lube system maintains proper operating pressure during pump cycles. Low pressure indicates pump or system issues.

Do not exceed maximum system pressure specifications when testing