Title Page

  • Site conducted

  • Conducted on

  • Prepared by

  • Location

  • Workl Order Number

Untitled Page

(T)ools, (S)afety Equipment and (M)aterials

  • Mechanic's tool set

  • Hydraulic oil (1 gallon)

  • Hand oiler and oil

  • Pressurized nitrogen bottle

  • Spin-on filter cartridge

  • Tools for cleaning debris

Safety Guidelines

  • Schedule work with operating staff

  • Block traffic and set up alternate security measures

  • Follow site safety rules for lockout and tagout

  • Disconnect power and bleed oil pressure to zero before working on any part of the system

  • Report equipment damage or deficiencies

  • Review and follow manufacturer's O&M instructions

  • Dispose of used oil and filters, properly

  • Record results in the component maintenance log

Maintenance Procedures

  • Check operational limit switches

  • Check all control functions

  • Inspect hydraulic power system

  • Inspect hydraulic hoses for damage and wear

  • Inspect hydraulic pressure system for leaks. Tighten fittings as required

  • Inspect pump motor electrical connections for loose wires, frayed insulation, and signs of overheating

  • Inspect motor coupling and mounting brackets for loose or broken bolts

  • Inspect pump suction strainer. Clean as required

  • Turn off pump/motor power, bleed system pressure to zero

  • Renew oil filter

  • Remove oil filter

  • Renew oil filter

  • Check hydraulic fluid level. Fill to near top of sight gage. Note: Level should be adjusted when the system is at zero pressure because of oil storage in the accumulator

  • Drain condensate

  • Check the accumulator pressure while the system is at zero pressure. For Delta units use Delta Charging Kit A02469-31 or equal. If tool is not available, observe the value that the pressure gage jumps to when power is turned on again. (See Hydraulic Se

  • Turn power on and bring system back to operation.

  • Check the accumulator pressure by observing the pressure gage. Recharge the accumulator with nitrogen if its pressure goes below 25% of the hydraulic pressure switch setting.

  • Confirm that the barrier operates smoothly. Adjust speeds as desired.

  • Clean dust and debris from around the HPU tank and hydraulic lines. Wipe up any spilled oil.

  • Cycle the barrier from the slave control panel. Confirm smooth operation during the raise and lower cycles.

Maintenance Hours

  • Time spent on work order?

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