Miller Electric 3000-4AH manual Maintenance, Block wheels when adjusting parking brake

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3-7. Maintenance

WARNING

FALLING EQUIPMENT can cause serious personal injury and equipment damage.

Apply parking brake while performing maintenance (see Section 3-1).

Support trailer with jack, or use proper equipment to lift trailer.

Do not put any body part under trailer while lifting or performing maintenance.

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NOTE

Do not use trailer if any part is damaged or not working properly. When performing maintenance, check trailer for worn, damaged, or non-working parts. Check for free rotation of assemblies mounted on bushings or bearings.

3

Replace trailer hardware only with SAE grade 5 hard- ware of same type and size as originally installed.

4

1

2

1

6

Block wheels when adjusting parking brake.

Support trailer with jack. Apply parking brake.

Once a year, lubricate all moving parts on trailer with SAE 20W oil. Lubricate more often if trailer is exposed to elements or subject to frequent off-road use.

1 Wheel Bearings

Every 12,000 miles, check wheel bearings. Repack bearings if necessary using a good quality lithium-based extreme pressure grease.

2 Brake Linings

Check linings every 20,000 miles and re- place if necessary.

5

When reinstalling wheels, be sure wheel nuts are properly tightened (see Trailer Towing Safety Precautions).

3 Brake Fluid Reservoir

Check fluid level in reservoir at least 3 times yearly. Add fluid if not up to full mark. Use DOT Series 3 brake fluid from a sealed con- tainer. See brake actuator Owner’s Manual.

4 Parking Brake Handle

To adjust parking brake, release brake and turn handle. Turn clockwise to increase brake pressure or counterclockwise to de- crease brake pressure.

Tools Needed:

BRAKE FLUID

1/2, 1-1/8 in

ST-800 017

Adjust brake so less than 30 ft lb (41 N.m) of force is required to apply or release brake handle.

If parking brake cannot be adjusted by turn- ing handle, proceed as follows:

Release parking brake. Turn parking brake handle counterclockwise as far as possible.

5Lock Nuts

6Adjustment Rod

Loosen lock nuts on rod. Slide rod slightly for- ward. Tighten nuts.

Turn handle clockwise until parking brake is properly adjusted.

Figure 3-8. Trailer Maintenance

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Contents OM-659 DescriptionFrom Miller to You Overloading can cause serious injury or equipment damage Trailer Towing Safety PrecautionsTrailer Towing can be hazardous Unexpected Tilting of Trailer can cause injury and damage Incorrectly Working Lights can cause accidentsTable of Contents Page Trailer Safety InformationSpecifications Installation & Operation Operating Parking Brake And JackInstalling Fenders And Lights Installing Fenders And LightsInstalling Optional Tool Box Installing Wiring Harness ConnectorsPersonal injury or equipment damage Health or killTilting of Trailer can result Installing Hitch And Connecting To Towing Vehicle Installing Welding Generator Installing Welding GeneratorMaintenance Block wheels when adjusting parking brakeTorquing Wheel Bearings Falling Equipment can causeParts List Complete AssemblyPart Description Quantity Optional Service SupportOwner’s Record Miller Electric Mfg. Co