What is included in a lighting tower 500-hour / annual service?

A 500-hour lighting tower service is a major service that carries forward all 250-hour tasks (engine oil and filter, mast inspection, light checks, basic electrical tests, trailer inspection) and adds fuel filter replacement, air filter replacement, drive belt replacement, mast winch or hydraulic cylinder service, lamp or LED module replacement if degraded, lux meter testing on each light head, full electrical test (insulation resistance, wiring integrity), wiring harness inspection, battery replacement if failing load test, tow bar hitch and safety chain inspection, full trailer brake check, fuel system service (drain sediment, check quality), vibration isolator mount check and service sticker update. It takes approximately 2 to 3 hours.

What additional items does a 500-hour service include compared to a 250-hour service?

Beyond the 250-hour service, the 500-hour interval adds: replacing the fuel filter, replacing the air filter element, replacing the drive belt, servicing the mast winch (cable and drum) or hydraulic cylinder (seals and operation), replacing lamps or LEDs if below spec, testing light output with a lux meter, full electrical testing including insulation resistance, inspecting the wiring harness for chafing or heat damage, replacing the battery if it fails a load test, inspecting tow bar hitch, safety chain and coupling, full trailer brake check, servicing the fuel system and updating the service sticker.

Why is lux meter testing important at 500 hours?

Lux meter testing at the 500-hour interval allows you to verify that each light head is still producing the required output for safe site illumination. Metal halide lamps degrade over time and may still appear lit but produce significantly less light. LED modules can also degrade from heat or vibration. Testing with a lux meter confirms whether lamps or LEDs need replacing before they fail completely, keeping your site compliant with illumination standards.

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Yes. Download and use the lighting tower 500-hour service procedure for free. Open the file and use your browser's Print, then Save as PDF. No MapTrack account required. If you later want digital service procedures linked to each asset with scheduling by hours, cost tracking and alerts, we would be happy to show you MapTrack.

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Free lighting tower 500-hour / annual service checklist

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A step-by-step 500-hour / annual (major) service procedure for trailer-mounted diesel lighting towers. This service carries forward all 250-hour tasks and adds fuel filter, air filter and drive belt replacement, mast winch or hydraulic service, lux meter testing, full electrical test, battery load test, trailer brake check and fuel system service. Includes fluid specifications, parts list and technician sign-off. This page explains what the service involves, how to perform it, and offers a free PDF-ready form you can download straight away.

Last updated: 2026-03-26 · MapTrack

Jarrod Milford

Commercial Director

Updated 26 March 2026

How to use: Complete the 250-hour service procedure first, then use this form for the additional 500-hour items. Fill equipment details and hour reading, then work through each service action. Record lux readings and electrical test results. Set the next service due hours and sign off.

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What is a lighting tower 500-hour / annual service?

A 500-hour or annual service is the major tier of scheduled preventive maintenance for a diesel lighting tower. It is performed every 500 engine hours or at least annually, whichever comes first. The 500-hour service carries forward all 250-hour tasks (engine oil and filter change, mast and light inspections, basic electrical tests, trailer checks) and adds more in-depth maintenance: replacing the fuel filter, replacing the air filter element, replacing the drive belt, servicing the mast winch or hydraulic cylinder, replacing degraded lamps or LED modules, testing light output with a lux meter, performing a full electrical test (insulation resistance and wiring integrity), inspecting the wiring harness, load testing the battery, checking tow bar and safety chain, full trailer brake check, fuel system service and updating the service sticker. It is typically performed by a qualified mechanic or electrician and takes 2 to 3 hours.

Benefits of scheduled lighting tower servicing

Verified light output: lux meter testing at 500 hours catches degraded lamps or LEDs before they fail, ensuring your site meets illumination standards.
Electrical safety: full insulation resistance testing and wiring harness inspection prevent electrical faults that could cause fires or shock hazards.
Extended component life: replacing filters, drive belts and servicing the mast winch or hydraulic cylinder on schedule prevents cascading failures.
Trailer safety: checking tow bar, safety chain, coupling and brakes at the annual interval ensures safe transport between sites.
Compliance: documented annual service records demonstrate that equipment is maintained to WHS and electrical standards, supporting insurance and regulatory obligations.
Resale value: a complete service history with documented 250 and 500-hour services increases the unit's value at trade-in or auction.

Benefits of digitising forms in MapTrack

When you move from paper or static PDFs to digital forms in MapTrack, you get:

Field users can easily scan a QR code to complete a form on mobile. Unlimited users.
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Link every form digitally as a PDF to the relevant asset, location or person.
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Build conditional logic (show or hide questions based on answers).
Take pictures or attach photos. Not possible with a paper-based form.
Electronic signatures.
Edit forms later without reprinting.
Restrict permissions (who can view, complete or approve).
Build forms with AI (describe what you need and MapTrack suggests the form).

Book a demo to see digital service procedures and hour-based scheduling in MapTrack.

Service actions included in the 500-hour procedure

This service procedure covers 14 additional service actions (beyond the 250-hour service) across 5 system areas:

Engine: replace fuel filter, replace air filter element, replace drive belt, service fuel system (drain sediment, check quality), check vibration isolator mounts.
Mast and lights: service mast winch or hydraulic cylinder, replace lamps or LED modules if degraded, test light output with lux meter (each head).
Electrical: full electrical test (insulation resistance, wiring integrity), inspect wiring harness for chafing or heat damage, replace battery if failing load test.
Trailer: inspect tow bar hitch, safety chain and coupling, full trailer brake check (adjust or reline).
General: update service sticker.

Fluid specifications

General fluid specifications for diesel lighting towers. Capacities vary by engine and unit size.

System	Type / Grade	Approx. Capacity
Engine oil	10W-30 or 15W-40	3 - 8 L
Coolant	50/50 ethylene glycol	3 - 6 L
Grease	EP2 lithium complex	As required

Specifications are general guidelines. Always refer to the manufacturer's service manual for your specific make and model.

Parts and consumables

Have the following parts and consumables ready before starting the 500-hour service (includes all 250-hour items):

Engine oil (10W-30 or 15W-40) - 3-8 litres
Engine oil filter - 1
Fuel filter - 1
Air filter element - 1
Drive belt - 1
Fuel/water separator element - 1
Replacement lamps/LEDs - as required
Battery (if replacing) - 1
Winch cable (if worn) - 1
EP2 grease cartridges - 1-2
Coolant (pre-mixed or concentrate) - as required for top-up
Rags, drip tray and waste oil container

Look up part numbers in the manufacturer's parts manual for your specific make and model before ordering.

How to perform a lighting tower 500-hour service

Complete the full 250-hour service procedure first (engine oil and filter change, mast and light inspections, basic electrical tests, trailer checks, greasing). Use the 250-hour service checklist.
Replace the fuel filter and air filter element. Replace the drive belt.
Service the fuel system: drain tank sediment and check fuel quality. Check and replace vibration isolator mounts if perished.
Service the mast winch (inspect cable, lubricate drum) or hydraulic cylinder (check seals, test operation).
Replace lamps or LED modules if degraded or below output spec. Test light output with a lux meter on each head and record readings.
Perform a full electrical test (insulation resistance, wiring integrity). Inspect the wiring harness for chafing or heat damage.
Load test the battery. Replace if failing. Inspect tow bar hitch, safety chain and coupling. Perform a full trailer brake check.
Update the service sticker. Start the engine and raise the mast. Check for leaks, abnormal noises or warning lights. Test all lights at full output. Record any defects in the notes section.
Set the next service due hours. Sign off and update the unit's maintenance log.

In MapTrack, you can schedule services based on hour meter readings, get automatic reminders, complete service procedures on mobile and link every record to the asset. Book a demo to see how.

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Lighting tower service interval hierarchy

Lighting tower maintenance follows a tiered schedule where each level includes all tasks from the level below. This is called carry-forward or cumulative servicing.

250 hours - Minor service

Engine oil and filter, mast and light inspection, electrical tests, trailer checks, greasing. Estimated 1-1.5 hours.

500 hours / annual - Major service (you are here)

All 250-hour tasks plus fuel filter, air filter and drive belt replacement, full electrical test, lux meter check, battery load test, trailer brake check, winch service. Estimated 2-3 hours.

In MapTrack, you can configure service schedules by engine hours and receive automatic alerts when each interval is due.

Frequently asked questions

What is included in a lighting tower 500-hour / annual service?: A 500-hour lighting tower service is a major service that carries forward all 250-hour tasks (engine oil and filter, mast inspection, light checks, basic electrical tests, trailer inspection) and adds fuel filter replacement, air filter replacement, drive belt replacement, mast winch or hydraulic cylinder service, lamp or LED module replacement if degraded, lux meter testing on each light head, full electrical test (insulation resistance, wiring integrity), wiring harness inspection, battery replacement if failing load test, tow bar hitch and safety chain inspection, full trailer brake check, fuel system service (drain sediment, check quality), vibration isolator mount check and service sticker update. It takes approximately 2 to 3 hours.
What additional items does a 500-hour service include compared to a 250-hour service?: Beyond the 250-hour service, the 500-hour interval adds: replacing the fuel filter, replacing the air filter element, replacing the drive belt, servicing the mast winch (cable and drum) or hydraulic cylinder (seals and operation), replacing lamps or LEDs if below spec, testing light output with a lux meter, full electrical testing including insulation resistance, inspecting the wiring harness for chafing or heat damage, replacing the battery if it fails a load test, inspecting tow bar hitch, safety chain and coupling, full trailer brake check, servicing the fuel system and updating the service sticker.
Why is lux meter testing important at 500 hours?: Lux meter testing at the 500-hour interval allows you to verify that each light head is still producing the required output for safe site illumination. Metal halide lamps degrade over time and may still appear lit but produce significantly less light. LED modules can also degrade from heat or vibration. Testing with a lux meter confirms whether lamps or LEDs need replacing before they fail completely, keeping your site compliant with illumination standards.
Is the template free to use without MapTrack?: Yes. Download and use the lighting tower 500-hour service procedure for free. Open the file and use your browser's Print, then Save as PDF. No MapTrack account required. If you later want digital service procedures linked to each asset with scheduling by hours, cost tracking and alerts, we would be happy to show you MapTrack.

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Register every lighting tower in MapTrack. Set up 250 and 500-hour service schedules, complete procedures on mobile, track parts and costs, and get automatic alerts when the next service is due.

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