Zetor Forterra Turbo 8641, 9641, 10641, 11441, 11741 service schedule
Zetor Forterra · Check your serial plate
Every maker's service job for the Zetor Forterra Turbo 8641, 9641, 10641, 11441, 11741, counted in hours, with the oils, filters and parts each one needs. Add your tractor to Farmyard Workshop and it works out what's due from your hours and dates, and keeps the service history.
Track your Forterra Turbo 8641, 9641, 10641, 11441, 11741 for freeVersions: Z 8641; Z 9641; Z 10641; Z 11441; Z 11741
Service intervals
| Job | When |
|---|---|
| Lubrication chart greasing | every 50 hours |
| Engine oil and filter change | every 300 hours |
| Fuel filter cartridge | every 300 hours |
| Transmission oil filter cartridge | every 300 hours |
| Front axle, reducers and steering oil | every 1,200 hours |
| Gearbox and final drive oil | every 1,800 hours |
| Coolant | every 2 years |
Service jobs and parts
Lubrication chart greasing
Chassis · every 50 hours
The handbook lists lubrication of the tractor to its lubrication chart every 50 hours.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Grease | 1 | Multi-purpose grease. Check the lubrication chart in your handbook for the points | check your handbook |
Step-by-step
- Grease each point on the lubrication chart.
Tools: Grease gun
Engine oil and filter change
Engine · every 300 hours
The inspection table gives the engine oil and the full-flow oil filter every 300 hours (Z 11741 also 300 hours, with a running-in oil change first). Biofuel needs the oil changed every 200 hours.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Engine oil | 1 | 15W-40 API CF-4/SG or CE/SG, 10 L (15 L on Z 11741). Aztec Oils match: EMPROTEC EHPD 15W-40 | check your handbook |
| Full-flow engine oil filter | 1 | Zetor genuine. The handbook gives no part number | check your handbook |
Step-by-step
- Drain the oil warm, refit the plug.
- Fit the new filter.
- Fill to the dipstick, run and recheck.
Tools: Drain tray (20 L), Filter wrench
Fuel filter cartridge
Fuel · every 300 hours
The inspection table gives the fuel filter cartridge every 300 hours (Z 11741 also 300 hours).
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Fuel filter cartridge | 1 | Partao fits list names Forterra 8641 to 12441. | 931273 |
Step-by-step
- Change the cartridge and bleed the system.
Tools: Filter wrench
Transmission oil filter cartridge
Transmission · every 300 hours
The inspection table gives the transmission oil full-flow paper filter cartridge every 300 hours and cleaning of the suction filter magnet and strainer every 300 hours.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Transmission oil filter cartridge | 1 | Zetor genuine. No part number in the handbook | check your handbook |
Step-by-step
- Change the cartridge and clean the suction strainer.
Front axle, reducers and steering oil
Driveline · every 1,200 hours
The inspection table marks the reducers and front axle housing oil, the front PTO gearbox oil and the hydrostatic steering oil and filter at 1200 hours, then every 1200 hours (first change at 300 hours).
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Front axle and reducer oil | 1 | 6.5 L housing, 2 x 0.6 L reducers; grade per tab. 3 in your handbook | check your handbook |
| Hydrostatic steering filter cartridge | 1 | Changed with the steering oil. No part number in the handbook | check your handbook |
Step-by-step
- Drain and refill each unit to its level plug; change the steering filter.
Tools: Drain tray (10 L)
Gearbox and final drive oil
Transmission · every 1,800 hours
The inspection table marks the gearbox oil exchange at 1800 hours, then every 1800 hours (read from the chart columns; check the footnote 3 on your page).
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Gearbox oil | 1 | 80W GL-4 gear oil / UTTO, 52 L. Aztec Oils match: AGRITEC UTTO | check your handbook |
Step-by-step
- Drain warm and refill to the dipstick.
Tools: Drain tray (60 L)
Coolant
Cooling · every 2 years
The handbook says change the coolant every 2 years. Z 11741: every 1200 hours or at least every two years, with Akros Fluid only. Z 8641 to Z 11441: Fridex-Stabil, Fridiol 91 or Fricofin S with demineralised water.
| Part | Qty | Notes | Part number |
|---|---|---|---|
| Coolant | 1 | Check your handbook for the antifreeze type; 19.5 L (Z 8641/9641), 23.5 L (Z 10641/11441), 19 L (Z 11741) | check your handbook |
Step-by-step
- Drain, flush and refill; top up the expansion tank to the MAX mark.
Oils, fluids and capacities
| System | Oil or spec | Capacity |
|---|---|---|
| Engine | Zetor four-cylinder turbo diesel (Z 11741 has a different engine with its own table) | |
| Engine oil | 15W-40 (10W-40, 10W-30 also listed), API CF-4/SG or CE/SG (tab. 1); Z 11741 Akros Turbo 15W-40 | 10 L (Z 8641 to Z 11441), 15 L (Z 11741) |
| Coolant | 19.5 L (Z 8641 to Z 9641), 23.5 L (Z 10641 to Z 11441), 19 L (Z 11741) | |
| Valve clearances | Check your handbook | |
| Gearbox and final drive | 80W GL-4 gear oil / UTTO (tab. 2: Gyrol UTTO, Torque Fluid 62, Mogul Trans 80, Super Traktoral 10W-30 and others) | 52 L (about 4 L more for the first filling) |
| Front driving axle housing | Check tab. 3 in your handbook | 6.5 L |
| Front axle planetary reducers | As front axle housing | 2 x 0.6 L |
| Front PTO shaft gearbox | See handbook tab. 2 | 1.2 L |
| Brake fluid | See handbook tab. 4 | 0.5 L |
| Hydrostatic steering | See handbook tab. 3 | 2.7 L |
| Fuel tank | Diesel (summer and winter grades) | 180 L |
Specifications
| Handbook | Operator's manual Z 8641 - Z 11741 (257 pages) |
Known problems
Z 11741 differs
The Z 11741 has its own maintenance table and a different coolant (Akros Fluid, no water to be added). Use that table if you have the 11741.
Biofuel
The handbook says biofuel increases consumption, cuts output about 5 per cent and needs the oil changed every 200 hours.
Fault codes: Forterra Turbo 8641 to 12441 fuse box (17-fuse version)
Fuses and relays
| Code | Meaning | What to do |
|---|---|---|
| 1 | 15 A: warning light interrupter, stop lights | Same rating only. |
| 2 | 15 A: horn, start breaker relay | Same rating only. |
| 3 | 15 A: front axle, differential lock, front PTO output with indicators, dashboard power, service socket | Same rating only. |
| 4 | 15 A: high beams with indicator | Same rating only. |
| 5 | 15 A: left side lights, number plate lights | Same rating only. |
| 6 | 15 A: right side lights, working lights with indicator | Same rating only. |
| 7 | 15 A: right low beam, fog light | Same rating only. |
| 8 | 15 A: left low beam, roof light indicator | Same rating only. |
| 9 | 15 A: front and rear wipers, washer | Same rating only. |
| 10 | 15 A: heater fan | Same rating only. |
| 11 | 15 A: reserve (spare) | Spare. |
| 12 (optional) | 7.5 A: air con compressor clutch | Same rating only. |
| 13 (optional) | 15 A: heated mirrors | Same rating only. |
| 14 (optional) | 15 A: heated rear window | Same rating only. |
| 15 (optional) | 15 A: driver's seat compressor | Same rating only. |
| 16 | 15 A: roof lights | Same rating only. |
| 17 (strip fuse) | 80 A: glow plugs | Strip type, replace only with an 80 A strip. |
Fault codes: Forterra Turbo 8641 to 12441 fuse box (21-fuse version)
Fuses and relays
| Code | Meaning | What to do |
|---|---|---|
| 1 | 15 A: warning light interrupter, stop (brake) lights | Same rating only. Needed for road use. |
| 2 | 15 A: horn, beacon | Same rating only. |
| 3 | 15 A: front axle control, differential control, dashboard power, rear PTO shaft control, multiplier control, EHR (hitch) control | Same rating only. If it keeps blowing have the wiring checked. |
| 4 | 15 A: high beam with indicator | Same rating only. |
| 5 | 15 A: left side lights, dashboard lights, number plate lights | Same rating only. |
| 6 | 15 A: right side lights, rear working light with indicator | Same rating only. |
| 7 | 15 A: right low beam, fog light with indicator | Same rating only. |
| 8 | 7.5 A: left low beam, roof light indicator | Same rating only. |
| 9 | 15 A: additional roof lights | Same rating only. |
| 10 | 3 A: front output shaft (Zuidberg) | Same rating only. |
| 11 | 15 A: front and rear wipers, washer, radio | Same rating only. |
| 12 | 20 A: heater fan, radio | Same rating only. |
| 13 | 15 A: air recirculation, lighter | Same rating only. |
| 14 (optional) | 7.5 A: air con compressor clutch | Same rating only. |
| 15 (optional) | 15 A: heated mirrors | Same rating only. |
| 16 (optional) | 15 A: heated rear window | Same rating only. |
| 17 (optional) | 15 A: driver's seat compressor | Same rating only. |
| 18 | 20 A: 3-pin socket | Same rating only. |
| 19 (optional) | 15 A: front working lights on the roof | Same rating only. |
| 20 (optional) | 15 A: rear working lights on the roof | Same rating only. |
| 21 (strip fuse) | 80 A: glow plugs (cold start heating) | Strip type, replace only with an 80 A strip. If it blows, find the cause. |
Parts list with genuine part numbers
Maker part numbers per site service schedule: Forterra Turbo 8641, 9641, 10641, 11441, 11741 (Check your serial plate); check serial range
Fuel
| Part | Part number | Qty | Notes |
|---|---|---|---|
| Fuel filter cartridge | 931273 | 1 | Partao fits list names Forterra 8641 to 12441. |
Sources
- Partao Zetor 931273
- Zetor Z 8641 - Z 11741 Forterra Turbo operator's manual: inspection and maintenance tables (viewer pp212-214)
- Same manual: oils (pp221-224) and operating liquids and charges (p225)
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