Req 4 — Equipment Maintenance Tasks

This requirement asks you to perform ONE of three maintenance tasks on an engine-powered machine. Choose the task that matches your access to equipment and your comfort level.

Option A: Full Maintenance Service

Perform a complete maintenance routine on a single piece of equipment. This is the most comprehensive option and teaches you the full scope of seasonal or regular maintenance.

What You Will Need

• An engine-powered machine (tractor, combine, grain auger, skid steer, etc.)
• Grease and a grease gun
• New engine oil and an oil filter (appropriate for the machine)
• New air filter or supplies to clean it
• New fuel filter(s)
• Jack stands and safety equipment if you need to access underside fittings
• Rags and absorbent material for spills
• A drain pan for old oil
• Access to the machine manual (for capacities and specifications)

Step-by-Step Instructions

1. Locate All Grease Fittings

Modern farm equipment has grease fittings (also called zerks or grease nipples) at joints, pivot points, and pivot pins.

• Check the equipment manual to find all fittings.
• Common locations: wheel bearings, steering components, bucket pivot points, boom pivot pins.
• Count them — you might find 10–20 or more.

Safety note: Before you start, ensure the engine is OFF, keys are removed, and the equipment is parked on level ground with wheels chocked (blocked) to prevent accidental movement.

2. Grease All Fittings

• Attach a grease gun to the first fitting.
• Pump until fresh grease comes out around the fitting (you should see the old, dark grease being displaced).
• Typically, 2–4 pumps per fitting is enough.
• Move to the next fitting and repeat.
• Wipe away excess grease with a rag.

Why this matters: Grease protects joints from rust and reduces friction. Under-greased joints wear out quickly; over-greased joints can create excessive heat and attract dirt.

3. Change the Engine Oil

• Locate the oil drain plug on the engine (usually at the lowest point of the oil pan).
• Place a drain pan underneath.
• Using a wrench, loosen and remove the drain plug. Be careful — the oil may be warm, even if the engine has been off for a while.
• Allow the old oil to drain completely (10–15 minutes).
• Wipe the drain plug clean and reinstall it. Tighten snugly but do not over-tighten.

4. Change the Oil Filter

• Locate the oil filter (cylindrical container on the side of the engine).
• Place the drain pan underneath (some oil will spill when you remove the old filter).
• Using an oil filter wrench, loosen the old filter and unscrew it by hand.
• Clean the filter mounting surface on the engine.
• Install a new filter (the same make and model as specified in the manual).
• Tighten the new filter by hand until it is snug, then turn it an additional 3/4 turn. Do not over-tighten.

5. Add Fresh Engine Oil

• Locate the oil fill cap on top of the engine.
• Remove the cap and set it aside (do not lose it).
• Pour the appropriate amount and type of fresh oil (check the manual for capacity and type, e.g., “15 quarts of SAE 15W-40”).
• Install the new oil cap.

6. Check Oil Level

• Wait 2–3 minutes for the new oil to settle.
• Pull out the dipstick, wipe it clean, reinsert it fully, then pull it out again to check the level.
• The oil should reach the “full” mark on the dipstick.
• Add more oil if needed.

7. Clean or Replace the Air Filter

• Locate the air filter housing (usually a large plastic or metal box near the top of the engine).
• Remove the old filter or cartridge.
• If it is a disposable filter: replace it with a new one of the same size.
• If it is a reusable filter: wash it with soap and water, let it dry completely, and reinstall it (some filters require a light coating of oil on the foam).

8. Clean the Radiator Fins

• Locate the radiator (a metal grid-like component in front of the engine or to the side).
• Radiator fins accumulate dust and chaff from field work.
• Using a stiff brush or compressed air, gently clean the fins to remove accumulated debris.
• Do not use water pressure (too much pressure can damage fins) unless it is low-pressure rinse.
• Work carefully — bent fins reduce cooling efficiency.

9. Document Your Work

• Take photos of your work.
• Note the date, the machine (tractor model, serial number), and the supplies used (oil type and amount, filter models, etc.).
• Keep records so your counselor can verify what you did.

Option B: Create and Execute a Preoperational Checklist

A preoperational check is done before every day of work to catch problems early and ensure safe operation. This option teaches you systematic inspection.

Creating Your Checklist

Design a checklist form that includes these mandatory items:

Engine Oil:

• Check level (dipstick at full mark)
• Look for leaks under the engine

Engine Coolant:

• Check level (radiator or overflow tank at proper level)
• Look for leaks or discoloration

Hydraulic Fluid (if applicable):

• Check level in hydraulic reservoir
• Look for leaks in hoses or cylinders
• Test controls for smooth, responsive operation

Transmission/Differential Fluid (if applicable):

• Check level on sight glass or dipstick
• Look for leaks

Battery:

• Battery connections are clean and tight
• Battery cables are not cracked or worn
• Battery voltage (using a voltmeter): should be 12V when engine is off, 13.5–14.5V when running

Fuel System:

• Fuel level adequate for the day’s work
• No visible fuel leaks
• Fuel cap is secure

Belts and Hoses:

• No visible cracks in belts
• No soft spots or leaks in hoses
• Belts have appropriate tension (typically 1/2 inch deflection when pressed)

Lights and Gauges:

• All lights (headlights, running lights, warning lights) function
• Gauges (oil pressure, temperature, fuel) are readable

Safety Equipment:

• Operator’s seat is secure
• Safety bars or ROPS (roll-over protective structure) are intact
• Fire extinguisher is present and accessible

PTO Shaft (if applicable):

• Guard is in place and undamaged
• Shaft rotates freely with no wobble
• Connection to implement is secure

Using Your Checklist

1. Print or write multiple copies of your checklist.
2. At the start of each work day, go through the entire checklist.
3. Mark items as “OK” or note any problems.
4. If you find a problem, fix it before operating the equipment (change a belt, add fluid, etc.).
5. After 2–3 uses, show your counselor the completed checklists and explain what you look for and why each item matters.

Benefits of this approach:

• Catches small problems before they become big failures.
• Creates accountability — you have documentation of when checks were done.
• Trains your eye to notice subtle changes in the equipment.

Option C: Winter Storage Preparation

Farm equipment is often idle for 3–6 months during winter. Proper storage prevents rust, extends fuel system life, and ensures the equipment starts reliably in spring.

Winter Storage Steps

1. Clean the Equipment

• Wash away mud, chaff, and debris using a garden hose (avoid high-pressure washing, which can force water into bearings).
• Use a stiff brush to remove stuck-on material.
• Dry with rags or allow to air dry.
• Why: Dirt and moisture accelerate rust.

2. Drain or Stabilize Fuel

• Option A (safest): Drain the fuel tank completely into a proper fuel container. This eliminates the risk of stale fuel or water condensation in the tank.
• Option B: Add a fuel stabilizer to the fuel tank, then run the engine for 5–10 minutes to circulate the treated fuel through the system. This preserves the fuel during storage.
• Why: Diesel fuel can absorb moisture (which causes microbial growth and fuel system corrosion) and can oxidize (turning to varnish) during long storage.

3. Change the Oil and Filter (Optional but Recommended)

• Old oil accumulates acidic combustion byproducts that promote rust from the inside.
• If you are performing full storage, change the oil and filter before putting the equipment away.
• Why: Fresh oil protects internal engine surfaces during idle periods.

4. Fill Antifreeze/Coolant

• Check the coolant level and top up if needed.
• Ensure the mix ratio is appropriate for winter temperatures (50/50 mix of antifreeze and water is typical).
• Why: Prevents the cooling system from freezing and cracking.

5. Service Air Filter

• Clean or replace the air filter.
• Remove the filter cover and install a clean filter or filter wrap to prevent dust from entering during storage.
• Why: Prevents dust and insects from clogging the system during idle months.

6. Grease All Fittings

• Use fresh grease to displace moisture at all joints and pivot points.
• Why: Fresh grease protects against rust and corrosion during storage.

7. Inspect and Protect Hydraulic System

• Check hydraulic fluid level and top up if low.
• Inspect hoses for cracks or leaks.
• Activate all hydraulic controls briefly to ensure smooth operation, then lower all raised components (bucket, boom) to neutral position.
• Why: Prevents crystallization of hydraulic fluid during cold storage and ensures seals remain lubricated.

8. Protect Against Rodents

• Inspect around the engine compartment and cab for rodent entry points.
• Use rodent-deterrent tape or hardware cloth to block obvious gaps.
• Leave the engine compartment hood open slightly (or with a loose cover) to discourage rodents from nesting inside.
• Why: Mice and rats can chew wiring and damage fuel systems.

9. Battery Care

• Option A (best): Remove the battery, clean the terminals, and store it in a warm location indoors on a trickle charger.
• Option B: If leaving the battery in the equipment, disconnect the negative terminal and ensure the battery is clean and dry.
• Why: Cold temperatures reduce battery output. A removed and charged battery will start the equipment reliably in spring.

10. Document and Store

• Create a list of everything you did: date, maintenance performed, any problems found.
• Store equipment in a dry location if possible (covered with a tarp if necessary).
• Keep this documentation with the equipment so the spring start-up crew knows what has been done.

Which Option Should You Choose?

Option A (Full Maintenance) is best if:

• You have consistent access to equipment
• You want a comprehensive, hands-on learning experience
• You want to complete the most thorough maintenance option

Option B (Preoperational Checklist) is best if:

• You use equipment regularly during the badge season
• You want to learn systematic inspection habits
• You prefer documentation-based work

Option C (Winter Storage) is best if:

• You are reading this in fall or early winter
• You have equipment that needs to be stored
• You want to learn long-term preservation techniques

Summary

Maintenance is the difference between equipment that runs reliably for decades and equipment that breaks down at critical moments. Whichever option you choose, you will be learning one of the most valuable skills in farm mechanics: keeping equipment in safe, reliable working condition.