JCB Loadall 526 service schedule
JCB Loadall telehandlers · 1996–2004 (526-55, later renamed 526)
Covers the JCB Loadall 526 (526-55).
Every maker's service job for the JCB Loadall 526, counted in hours, with the oils, filters and parts each one needs. Add your telehandler to Farmyard Workshop and it works out what's due from your hours and dates, and keeps the service history.
Track your Loadall 526 for freeService intervals
| Job | When |
|---|---|
| Engine oil and filter change | when needed |
| Fuel filter change and water drain | when needed |
| Air filter elements change | when needed |
| Hydraulic oil and filter change | when needed |
| Transmission oil and filter change | when needed |
| Axle and hub oil change | when needed |
| Coolant change | when needed |
| Brake fluid change | when needed |
| Boom, pivot and carriage greasing | when needed |
| Boom wear pads check | when needed |
Service jobs and parts
Engine oil and filter change
Engine · when needed
JCB's service manual gives the oil and capacity (10 L) but the service schedule page was not in the preview we could read, so the interval is not sourced: check your handbook. Always change the filter with the oil.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Engine oil | 1 | 15W-40. 10 L. JCB High Performance Engine Oil SAE 15W-40 (API CF4/SG), or a cold-weather grade from the engine notes. Aztec Oils match: EMPROTEC SDX 10W | check your handbook |
| Engine oil filter | 1 | No number found; check your handbook | check your handbook |
Step-by-step
- Park on firm level ground. Fully retract and lower the boom with the forks or attachment flat on the ground. Parking brake on, engine stopped, key out.
- Let the engine cool for about 10 minutes. Wear gloves.
- Drain the sump, change the filter (seal oiled, hand tight) and refit the plug.
- Fill to the dipstick mark, run for a minute, check for leaks, then recheck the level.
Tools: Drain tray (15 L), Filter wrench, Socket for sump plug, Funnel, Gloves
Fuel filter change and water drain
Fuel · when needed
No sourced interval for this model: check your handbook.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Fuel filter element | 1 | No number found; check your handbook | check your handbook |
Step-by-step
- Boom lowered and retracted, attachment on the ground, engine off, key out. No naked flames.
- Drain water from the filter or sedimenter, then change the element with new seals.
- Bleed the fuel system as the handbook describes, start and check for leaks.
Tools: Filter wrench, Container for fuel, Rags
Air filter elements change
Engine · when needed
No sourced interval for this model: check your handbook.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Outer air filter element | 1 | No number found; check your handbook | check your handbook |
| Inner (safety) element | 1 | No number found; check your handbook | check your handbook |
Step-by-step
- Stop the engine and take the key out.
- Change the outer element; change the inner element only at its own interval, covering the intake while it is out.
- Close the housing and squeeze the dust valve clear.
Tools: Torch, Damp cloth
Hydraulic oil and filter change
Hydraulics · when needed
JCB's service manual gives the oil and tank size but the interval was not in the preview we could read: check your handbook. The filter goes in with every oil change.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Hydraulic oil | 1 | ISO VG 46 or ISO VG 32. JCB High Performance Hydraulic Fluid 46 (above 38 °C) or 32 (below 38 °C). Tank 100 L up to serial 279000, 110 L from 279001. Aztec Oils match: HYDRATEC HM 46 | check your handbook |
| Hydraulic filter element | 1 | No number found; check your handbook | check your handbook |
Step-by-step
- Park level. Fully retract and lower the boom, attachment flat on the ground, engine off and key out.
- Work the controls with the engine off to release trapped pressure. Oil under pressure can pierce skin.
- Never work under a raised boom unless the boom safety strut is fitted.
- Drain the tank, change the filter, clean any suction strainer, refill, then run every service through its travel and recheck the level with the boom down.
Tools: Large containers, Spanners, Pump, Gloves
Transmission oil and filter change
Transmission · when needed
JCB's service manual gives the Syncro Shuttle oil and capacity (17 L) but the interval was not in the preview we could read: check your handbook. Never use friction-modified oil such as Dexron ATF.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Transmission oil | 1 | ATF. 17 L. JCB High Performance Transmission Fluid (JCB 4000/0900) | check your handbook |
| Transmission filter | 1 | No number found; check your handbook | check your handbook |
Step-by-step
- Boom down and retracted, attachment on the ground, wheels chocked, engine off, key out.
- Drain the oil, change the filter, clean the strainer if fitted, refill and check the level as the handbook says.
Tools: Drain tray, Filter wrench, Spanners
Axle and hub oil change
Axles · when needed
JCB's service manual gives the oil and capacities but the interval was not in the preview we could read: check your handbook. The oil must suit oil-immersed brakes and limited-slip differentials.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Axle and hub oil | 1 | JCB High Performance Gear Oil Plus (JCB 4000/2200). Front housing 9 L, rear housing 8.4 L, each of 4 hubs 2 L | check your handbook |
Step-by-step
- Park on level ground so the levels read true. Boom down and retracted, attachment down, wheels chocked, engine off.
- Drain and refill each axle housing and each hub to its level plug.
Tools: Drain trays, Spanners, Oil pump
Coolant change
Cooling · when needed
JCB's service manual gives the coolant and capacity (20 L system, 55% antifreeze) but the interval was not in the preview we could read: check your handbook. The sister manual for the 525-58 (9803/3600) lists coolant checks only, with no timed change.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Coolant | 1 | 20 L system: 11 L JCB Four Seasons Antifreeze and Summer Coolant (ASTM D3306) with water, 55% mix, protects to -36 °C | check your handbook |
Step-by-step
- Only work on a cold engine; ease the cap off to release pressure.
- Drain, refill with the correct mix, run to temperature, cool and top up.
Tools: Drain tray, Coolant tester
Brake fluid change
Brakes · when needed
No sourced interval for this model: check your handbook. JCB's service manual says machines from serial 280300 use JCB Light Hydraulic Fluid ISO VG15 in the brakes, not ordinary brake fluid.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Brake fluid | 1 | ISO VG 15 hydraulic fluid (not DOT brake fluid). JCB Light Hydraulic Fluid ISO VG15 (from serial 280300); quantity: check your handbook. Aztec Oils match: HYDRATEC DOT 4 BF | check your handbook |
Step-by-step
- Boom down, attachment on the ground, wheels chocked firmly, engine off.
- Bleed as the handbook shows, keeping the reservoir topped up, then test the brakes at low speed.
Tools: Bleed tube and jar, Ring spanner
Boom, pivot and carriage greasing
Boom · when needed
Loadalls depend on regular greasing of the boom pivot, rams, carriage and axle pivots. No model-specific interval was found for the 526: check your handbook.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Grease | 1 | EP2 grease. JCB HP Grease (lithium complex NLGI 2, EP) or JCB Special MPL-EP Grease. Aztec Oils match: VOLCATEC LITHIUM COMPLEX B-EP 2 | check your handbook |
Step-by-step
- Boom fully retracted and lowered, attachment on the ground, engine off, key out.
- If the boom must be raised to reach a point, fit the boom safety strut first. Never stand under a raised boom without it.
- Grease each point on the handbook diagram until fresh grease shows, and wipe off the surplus.
Tools: Grease gun, Rags
Boom wear pads check
Boom · when needed
Worn or unshimmed pads let the boom rock, which can crack the main pivot area. No interval sourced: check your handbook.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Wear pads and shims | 1 | No number found; check your handbook | check your handbook |
Step-by-step
- Park level, retract the boom, attachment on the ground, engine off.
- Check the pads at the boom nose for wear and the extending section for side play. Shim or renew as the handbook says, never reaching in under a raised boom without the safety strut.
Tools: Feeler gauges, Rags
Oils, fluids and capacities
| System | Oil or spec | Capacity |
|---|---|---|
| Engine | Perkins 4.0 L 4-cylinder diesel (listed as 1004T, 79 kW; a French spec sheet gives 76 hp: check your engine plate) | |
| Engine oil | JCB High Performance Engine Oil SAE 15W-40, API CF4/SG (ACEA E2:B2:A2), for -10 to 50 °C; or JCB Super Universal Agricultural SAE 10W-30 (API CD/SF) for -15 to 30 °C; or JCB Torque Converter Fluid SAE 10W (API CD/SF) for -18 to 0 °C. (Service manual 9803/3610, AA and AB engine builds.) | 10 L |
| Coolant | 20 L system. JCB Four Seasons Antifreeze and Summer Coolant (ASTM D3306) at 55% (11 L antifreeze), which starts to freeze at -36 °C. | |
| Valve clearances | Check your handbook | |
| Engine oil | JCB High Performance Engine Oil SAE 15W-40 (API CF4/SG); see engine for cold-weather grades | 10 L |
| Hydraulic tank | JCB High Performance Hydraulic Fluid 46 (ISO VG46) above 38 °C; JCB High Performance Hydraulic Fluid 32 (ISO VG32) below 38 °C; JCB Light Hydraulic Fluid (ISO VG15) is also listed | 100 L up to serial 279000; 110 L from serial 279001 |
| Syncro Shuttle transmission | JCB High Performance Transmission Fluid (JCB 4000/0900). Do not use friction-modified oils such as Dexron ATF | 17 L |
| Front axle | JCB High Performance Gear Oil Plus (JCB 4000/2200), suitable for oil-immersed brakes and limited-slip differentials | Housing 9 L; hubs 2 L each (×2) |
| Rear axle | JCB High Performance Gear Oil Plus (JCB 4000/2200) | Housing 8.4 L; hubs 2 L each (×2) |
| Brakes (from serial 280300) | JCB Light Hydraulic Fluid ISO VG15. Do not use ordinary brake fluid | Check your handbook |
| Coolant | JCB Four Seasons Antifreeze and Summer Coolant (ASTM D3306), 55% mix | 20 L (11 L antifreeze) |
| Grease points | JCB HP Grease (lithium complex NLGI 2 with EP additives) or JCB Special MPL-EP Grease (lithium NLGI 2 with EP) | |
| Wear pad runways / boom hoses | JCB Waxoyl on the runways; JCB Special Slide Lubricant on the boom hoses | |
| Fuel tank | Diesel (ASTM D975 No. 1D or 2D) | 120 L up to serial 279000; 160 L from serial 279001 |
Specifications
| Engine power | 79 kW (Lectura) or 76 hp (Terre-net): check your engine plate |
| Max lift capacity | ≈2,600 kg (2.6 t to full height) |
| Load at full reach | ≈1,000–1,500 kg (sources differ) |
| Max lift height | ≈5.5 m |
| Max reach | ≈3.05 m |
| Transmission | Torque converter, 4-speed synchro, four-wheel drive |
| Hydraulic flow | ≈80 L/min |
| Overall width / height | ≈2.23 m / ≈2.3 m |
| Tyre pressures | Check your handbook |
Known problems
Boom wear pads and main pivot
Rock the extending section for side play. Unshimmed pads can lead to cracking around the main pivot pin.
Pins and bushes
Tilt the carriage to about 45 degrees and check the pins and bushes for wear or cracks.
Axle kingpins and steering bushes
Lift each end and check for play; steering bushes are often neglected.
Transmission
Check all gears engage both ways and ask for service history; rebuilds are expensive.
Model naming
The 526-55 was later renamed 526, and a later 526 (from serial 1182000) uses the JCB 444 engine. Check your serial plate before ordering parts.
Repair guides
- Identify your Loadall build and serial number before buying parts (Easy, 30 minutes): Filters, oils or capacities in the book don't match the machine; a parts list gives two numbers; the model name on the boom differs from the paperwork.
- Brake fluid top-up and brake faults (mineral fluid, never DOT) (Moderate, 30 minutes to check; dealer for internal brake work): Brake fluid warning, spongy or long pedal, brakes dragging or judder after someone topped up, park brake won't hold on a slope, brake accumulator warning on a Stage V machine.
- Boom wear pads: checking side play, shimming and replacing (Hard, 2–4 hours to check and shim the front pads; longer to replace inner pads): Boom nose rocks sideways, knocking as the boom extends or retracts, uneven shiny tracks or bare metal on the runways, cracks near the main boom pivot.
- Carriage pins, bushes and quick-fit carriage faults (Moderate, 1 hour to check; 3–5 hours to change a pin and bushes): Attachment knocks or rocks on the carriage, play at the carriage pivot, cracks round the carriage pin bosses, lock pins won't go fully home, attachment hangs at an angle.
- Axle kingpins, steering bushes and rear axle pivot play (Hard, 1 hour to check; a day per side to renew kingpin bushes): Wheels wobble when lifted, clunk when steering at a standstill, uneven tyre wear, vague steering, rear axle knocks over bumps.
- Syncro Shuttle gearbox: owner checks before a rebuild (Specialist, 1 hour of owner checks; rebuilds are dealer work): Won't drive in one direction, slips or flares when pulling, crunches selecting gears, slow to take up drive when cold, oil leaks at the bellhousing.
- Hydraulic hose replacement (safely) (Moderate, 1–2 hours for an accessible hose): Weeping hose end, ballooned or cracked cover, wire showing, hose kinked or crushed, oil spray under load.
- Hydraulic ram reseal (lift, tilt, extension, compensation rams) (Hard, Half to a full day per ram): Oil running down a ram rod, boom or carriage drifts with the engine off, rod scored or pitted, gland nut weeping.
The full step-by-step guides are in Farmyard Workshop once you add your telehandler.
Sources
- Years (1996–2004), Perkins 1004T engine, 79 kW, 2.6 t lift, 5.5 m height (spec database)
- Perkins engine, 76 hp, 4.0 L, torque converter 4-speed, 120 L fuel tank, 80 L/min, reach and dimensions (Terre-net spec sheet, 2001)
- Later 526 / 526S / 528-70 service manual from serial 1182000 (listing only)
- Lubricants and capacities for 526-55, 526 and 526S, AA/AB engine builds: oils, coolant, tank sizes by serial (JCB service manual 9803/3610, section 3 page 1-4, SlideShare preview slide 22)
- Known problems and checks for used Loadalls (Farmers Weekly)
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