Keep every asset’s service history and next due date in one log.
Build a free equipment maintenance log with asset register, service history, next-due dates, overdue board, cost totals, audit checks, and CSV or print export. No signup.
- Client-side & private
- No signup
- Next-due board
- Print & CSV export
1. Shop & log header
Identify your shop site, report date, and global hourly labor rate to drive overdue math and cost estimates.
2. Asset register
Register machinery, fleet vehicles, and facility equipment with PM intervals and meter readings.
3. Service history log
Record maintenance events, PM checks, repairs, technician labor, parts costs, and downtime.
How the Next-Due Math Works (Calendar vs. Meter PM)
Preventive maintenance (PM) scheduling relies on two primary triggers: calendar intervals (elapsed days) and meter thresholds (operating hours, miles, or work cycles). This builder dynamically tracks both and assigns each asset an overall due status based on whichever threshold is reached first.
| PM Trigger Type | Formula / Calculation | Status Thresholds |
|---|---|---|
| Calendar Next Due | Next Due Date = Last Service Date + Service Interval (Days) | Overdue if Next Due Date < Report Date; Due Soon if 0 ≤ Days Until Due ≤ 14. |
| Meter Next Due | Next Due Meter = Last Service Meter + Meter Interval | Overdue if Current Meter > Next Due Meter; Due Soon if Meter Remaining ≤ 10% of Interval. |
| Overall Asset Status | Worst of (Calendar Status, Meter Status) | Hierarchy: OVERDUE > DUE SOON > CURRENT > UNKNOWN / N/A. |
What to Log on Every Equipment Service Event
Keeping thorough service records creates an auditable paper trail for equipment safety, warranty compliance, resale valuation, and insurance claims. A complete service entry should record:
- Asset Identifier & Date: Match the exact Asset ID (e.g. FLT-01, CNC-02) and record the completion or scheduled date.
- Technician & Service Type: Distinguish between routine Preventive Maintenance (PM), emergency Repairs, safety Inspections, or instrument Calibrations.
- Work Performed & Parts Used: Note part numbers, filter codes, lubricant types, and specific maintenance steps completed.
- Labor & Material Costs: Capture parts cost and technician labor hours. If an explicit labor cost is not entered, the tool automatically calculates labor cost using your shop's hourly labor rate.
- Downtime Hours: Track operational lost time to calculate equipment availability and total cost of ownership (TCO).
Walkthrough: Example Fabrication Shop Maintenance Log
Consider a mid-sized US fabrication shop in Apex, NC operating a mix of heavy equipment, CNC machine tools, compressed air systems, and service trucks:
- Forklift (FLT-01): Scheduled for PM every 90 days or 5,000 miles. Because its last service was over 100 days ago, the log flags FLT-01 as OVERDUE in bright red, prompting immediate oil and safety inspection.
- Rotary Screw Compressor (CMP-02): Operates on a 90-day / 1,000-hour PM schedule. With 17 days remaining until due and only 80 operating hours left, it displays an amber DUE SOON badge for proactive maintenance ordering.
- Vertical Machining Center (CNC-01): Recently serviced spindle oil and way covers, remaining comfortably in CURRENT status.
- Stake Body Shop Truck (TRK-03): Marked as Down with an active repair log entry for alternator replacement, allowing managers to track downtime hours.
Operational Best Practices & CMMS Limitations
While full Computerized Maintenance Management System (CMMS) platforms offer complex automated work orders and telemetry integrations, small-to-medium shops often struggle with their cost and complexity. This browser-based log builder provides an immediate, zero-signup solution to keep asset histories clean and exportable.
Disclaimer: This tool is intended for internal shop logging, PM scheduling, and service history recordkeeping. Always consult original equipment manufacturer (OEM) manuals for mandated safety standards, torque specs, fluid capacities, and warranty compliance requirements.
Frequently Asked Questions (FAQs)
- How does the equipment maintenance log calculate next due dates?
- Next due dates are calculated by adding the asset's service interval in days to its last service date. For meter-based equipment (such as engine hours or vehicle mileage), the tool also calculates next due meter reading by adding the meter interval to the last service meter.
- What is the difference between calendar-based and meter-based preventive maintenance?
- Calendar-based PM schedules service at set time intervals (e.g., every 90 days), ideal for fixed facility equipment like HVAC units or air compressors. Meter-based PM schedules service based on operating usage (e.g., every 250 operating hours or 5,000 miles), ideal for vehicles, fleet trucks, and heavy machinery.
- Can I export this equipment maintenance log to Excel or CSV?
- Yes. The builder allows you to download a complete CSV file containing both the Asset Register block and the Service History log, as well as a plain text summary and print-ready formatted document.
- Does this equipment maintenance log replace a CMMS software?
- No. This tool is a lightweight, client-side equipment maintenance log designed for small shops, contractors, and facility managers who need clear, spreadsheet-like service history tracking without monthly subscription fees or software installation. Always consult OEM manuals for official PM specifications.
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