JCB Loadall 525-58 service schedule

1. Park level, fully retract and lower the boom with the attachment on the ground, parking brake on, engine stopped and key out.
2. If any point can only be reached with the boom raised, fit the JCB boom safety strut over the lift ram before going near it. Never stand under a raised boom without it.
3. Wipe each nipple clean and grease the points your handbook diagram marks as 50-hour until fresh grease shows. The manual's greasing sections cover pivot pins, front and rear axle, carriage lock pins, fork pivot pins, extension ram pivots, drive shafts and steer axle pivots, but our copy did not show which belong to the 50-hour or the 500-hour group.
4. Wipe off surplus grease so it does not collect grit.

Tools: Grease gun, Rags

1. Fully lower and retract the boom, put the attachment on the ground, stop the engine and take the key out.
2. Work the controls with the engine off to relieve hydraulic pressure.
3. Clean around the filter housing, then remove the old filter and catch the oil.
4. Fit the new filter with a clean, oiled seal.
5. Start the engine, check for leaks, then check the level in the sight glass with all rams closed and top up.

Tools: Filter wrench or spanners, Drain tray, Rags

1. Park on firm level ground. Fully retract the boom and lower it, with the forks or attachment flat on the ground. Apply the parking brake, stop the engine and take the key out.
2. Let the engine cool for about 10 minutes so the oil is warm but not scalding. Wear gloves.
3. Remove the sump plug and let the oil drain fully into the tray.
4. Clean around the filter head, unscrew the old filter and check its seal has come off with it.
5. Smear clean oil on the new filter seal and fit it by hand. Do not over-tighten.
6. Refit the sump plug, fill to the full mark on the dipstick, run for a minute, check for leaks, stop, wait a few minutes and recheck the level.

Tools: Drain tray (15 L), Filter wrench, Socket for sump plug, Funnel, Gloves, Rags

1. Boom fully lowered and retracted, attachment on the ground, parking brake on, engine stopped and key out. No naked flames or smoking.
2. Clean the outside of the filter and sedimenter so no dirt gets in.
3. Drain the sedimenter and filter into a container. Clean the sedimenter bowl.
4. Fit the new filter element with new seals.
5. Bleed the fuel system as the handbook describes, then start the engine and check for leaks.

Tools: Filter wrench, Container for fuel, Rags, Gloves

1. Stop the engine and take the key out. Never run the engine with the element out.
2. Open the air cleaner and take out the outer element, leaving the inner element in place.
3. Wipe the inside of the housing with a damp cloth. Do not blow dirt into the intake.
4. Fit the new element, check it seats evenly, close the housing and squeeze the dust valve clear.

Tools: Torch, Damp cloth

1. Park level, lower and retract the boom, attachment on the ground, engine off, key out.
2. Clean around the filter, remove it and catch the oil.
3. Fit the new filter with an oiled seal, hand-tight.
4. Run the engine, check for leaks, then check the transmission level on the dipstick and top up between MIN and MAX.

Tools: Filter wrench, Drain tray, Rags

1. Park on firm level ground: a level machine is needed for a true reading. Boom lowered and retracted, attachment down, parking brake on, wheels chocked, engine off and key out.
2. Drain each axle housing. Turn each hub so its plug is at the drain position and drain it.
3. Refill each housing to its level plug, turn each hub to the level position and fill to the plug.
4. Refit all plugs, clean the breathers and check for leaks after the next run.

Tools: Drain trays, Spanners, Oil pump or squeeze bottle, Rags

1. Park level, retract and lower the boom, attachment on the ground, engine off, key out.
2. Look for scoring and thin pads at the boom nose. Then, with the boom raised a little and nobody near it, rock the extending section by hand from the side to feel for play.
3. If pads need shimming or renewing, lower the boom, stop the engine and follow the handbook. Never reach into the boom with it raised unless the safety strut is fitted.
4. Clean the runways and apply JCB Waxoyl as the handbook shows.

Tools: Feeler gauges, Rags, Brush

1. Stop the engine and take the key out.
2. Wear a dust mask, take out the filter and tap or vacuum it clean (replace if damaged).
3. Refit and check the cover seals.

Tools: Screwdriver, Dust mask

1. Make the machine safe: boom retracted and lowered, attachment on the ground, engine off, key out. Use the boom safety strut if the boom has to be raised.
2. Grease the points your handbook marks as 500-hour.
3. Lubricate the inner boom hoses with JCB Special Slide Lubricant as the handbook shows.

Tools: Grease gun, Rags

1. Park on firm level ground. Fully retract and lower the boom with the attachment flat on the ground, parking brake on, engine stopped and key out.
2. With the key at the off position, work the boom, tilt and auxiliary controls back and forth to release trapped pressure. Oil under pressure can pierce skin.
3. Never work under a raised boom unless the JCB boom safety strut is fitted.
4. Let the oil cool before opening the tank filler. Drain the tank into containers, standing clear of the plug.
5. Remove and clean the suction strainers, refit with new seals, and fit a new filter element.
6. Fill with the correct grade, run the engine, work every service through its full travel, then lower and retract the boom and check the level.

Tools: Containers for at least 200 L, Spanners, Parts-cleaning tray and solvent, Pump, Gloves, Lint-free rags

1. Boom fully lowered and retracted, attachment on the ground, parking brake on, wheels chocked, engine stopped and key out.
2. Let the oil cool so it is warm, not scalding. Drain the transmission.
3. Take out and clean the strainer, refit with a new seal, and fit a new filter with its seal oiled.
4. Refill with the correct fluid, run the engine at idle, and check the level as the handbook says. Do not overfill.

Tools: Drain tray (25 L), Filter wrench, Spanners, Funnel or pump, Gloves

1. Stop the engine and take the key out.
2. Take out the outer element, then the inner. Cover the intake at once so nothing falls in.
3. Fit the new inner element, then the outer, and close the housing.

Tools: Torch, Clean cloth

1. Boom lowered and retracted, attachment down, wheels chocked firmly, engine off and key out. The brakes will not work properly during this job.
2. Bleed the old fluid out as the handbook shows, keeping the reservoir topped up with ISO VG15 fluid only.
3. Test the brakes at low speed in a safe place before work.

Tools: Bleed tube and jar, Ring spanner, Rags

1. Only work on a cold engine. Ease the cap to let pressure out before removing it.
2. Drain the radiator and block. Dispose of old coolant properly; it is poisonous to animals.
3. Refill with the correct mix, run the engine to temperature, let it cool and top up.

Tools: Drain tray (25 L), Hose, Coolant tester