Factory procedures for the JCB TM320, TM320S, and TM320WM wheeled loader, OEM #9821/3100-6, laid out exactly as the dealer technician reads them. Safety checklists and warning procedures open the manual. Operation follows: servo-control levers, instrument cluster indicators, and load charts. Routine maintenance steps are documented section by section. Service intervals span the initial 100-hour inspection through 9,000 hours across 19 documented checkpoints. Wheel nuts torque to 680 Nm front and rear; the hydraulic filter element caps at 72 Nm. When the machine is down, you want the factory answer, not a forum guess. Section bookmarks let you jump straight to fluid capacities, error-code clearing, or tyre inflation specs without scrolling. Download it, open it on a tablet, and read it next to the machine.
What's Inside This JCB TM320, TM320S, TM320WM Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety Notices | 11-12 | Important Information, Operator Manual, Safety Warnings |
| Mirrors | 35-45 | Doors and Windows, Before Entering the Cab, Introduction, Entering and Leaving the Cab, Opening and Closing the Doors, Suspension Seat (Kab 800 Series - Air), Seat Controls, Inertia Reel Seat Belt |
| Switches | 46-59 | Drive Controls, Cab Layout, Component Key, Switches and Instruments |
| Servo-Control Lever | 60-71 | Instrument Cluster, Introduction, Air Conditioning and Heater Controls, Operating Levers |
| Fire Extinguisher (If Fitted) | 72-84 | Before Starting the Engine, Load Charts, Safety Equipment, Longitudinal Load Moment, Smooth Ride System, Introduction, Preparing the Machine for Travel, Preparing for Road Travel |
| Working with a Boom | 85-98 | Operating Practices and Site Safety, Stopping and Parking the Machine, Working with the Machine, Safety Practices, Clothing and Safety Equipment, Danger Zone, Log Moving/Handling |
| Hydraulic Tow Hitch | 99-106 | Cab Filters, Use of Machines on Gradients or Slopes, Operating Environment, Operating in Low Temperatures, Operating in High Temperatures, Operating in Dusty or Sandy Areas, Operating in Coastal Regions, Operating on Wet or Soft Ground |
| During Storage | 107-113 | Introduction, Filling the Tank, Refuelling the Machine, Low Fuel Levels, Moving a Disabled Machine, Preparation for Towing, Articulation Locks, Transporting the Machine |
| Take the Machine Out of Storage | 114-124 | - |
| Routine Maintenance | 125-188 | Service Requirements, Introduction, Owner/Operator Support, Service/Maintenance Agreements, Initial Service and Inspection, Fit for Purpose Tests for Lifting Equipment |
| Optional Attachments | 189-200 | Engage the Attachments, Disengage the Attachments, Work Platforms, Lift Performance, Static Dimensions, Trailer Towing, Towing Limitations, Wheels and Tyres |
| Specifications | 201-212 | Lift Performance, Static Dimensions, Trailer Towing, Wheels and Tyres, Noise Data, Vibration Data |
| Warranty Information | 213-216 | Machine Service Record Sheet (Installation Checklist, 1st 100 Hrs./2 Weeks, 500 Hrs./6 Month, 1000 Hrs./12 Month, 1500 Hrs./18 Month, 2000 Hrs./24 Month, 2500 Hrs./30 Month, 3000 Hrs./36 Month, 3500 Hrs./42 Month, 4000 Hrs./48 Month, 4500 Hrs./54 Month, 5000 Hrs./60 Month, 5500 Hrs./66 Month, 6000 Hrs./72 Month, 6500 Hrs./78 Month, 7000 Hrs./84 Month, 7500 Hrs./90 Month, 8000 Hrs./96 Month, 8500 Hrs./102 Month, 9000 Hrs./108 Month) |
| European Community Standards | 217-220 | Ec Declaration of Conformity, Introduction, Explanation of the Ec Declaration of Conformity |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Hydraulic Error/Fault alarm clearing | Push the enter button L to remove the error code from the status screen; alarm cancels after 10 seconds or when fault code is cleared | p. 61 |
| Wheel nut torque (Front) | 680 Nm (500 lbf ft) | p. 186 |
| Wheel nut torque (Rear) | 680 Nm (500 lbf ft) | p. 186 |
| Hydraulic filter element cap torque | 72Nm | p. 169 |
| Transmission oil temperature (high set point) | 105°C | p. 61 |
| Transmission oil temperature (critical fault) | 110°C | p. 61 |
| Engine Oil Capacity (Maximum) | 15 Litres | p. 138 |
| Engine Coolant Capacity | 20.5 Litres | p. 138 |
| Transmission Fluid Capacity (Dry Fill) | 19 Litres | p. 138 |
| Transfer Box Oil Capacity | 1.3 Litres | p. 138 |
| Axle Oil Capacity | 17.7 Litres | p. 138 |
| Wheel Nut Torque | 680 Nm | p. 176 |
JCB TM320, TM320S, TM320WM Common Problems This Manual Covers
JCB TM320 transmission warning light illuminated, machine hesitates or slips between gears
Check transmission oil on the dipstick with the engine idling and the machine level. Dry-fill capacity is 19 litres (page 138). Pull any active fault codes from the status screen and write down the code before you call the dealer. Avoid heavy load until the fault is diagnosed.
Manual Section: Transmission Oil MaintenanceCoolant temperature gauge climbing toward red zone, engine running hot at normal workloads
Stop work and let the engine idle down to cool. Check the expansion tank level when cold; the system holds 20.5 litres. Inspect the radiator and cooling-pack fins for packed debris, then clear them with low-pressure air or water from 1 metre back. Confirm coolant type and fill level against the fluid capacities.
Manual Section: Cooling System MaintenancePark brake warning light stays on or machine rolls slightly when brake is applied
Test the park brake on level ground: set it and confirm the machine holds. Review the service schedule for inspection due dates. Inspect brake hoses for seepage at the wheel ends and verify all wheel nuts sit at 680 Nm (page 176). If it fails the hold test, call your dealer immediately.
Manual Section: Brake System Testing and AdjustmentBoom extension stutters or jerks during telescopic operation, slow to reach full extension p. 179
Verify hydraulic oil at the sight glass with the boom fully lowered and the machine level. Top up if it reads below MIN, matching the listed fluid specification. Inspect the boom hoses for kinks or chafing. Swap the hydraulic filter on schedule and torque the cap to 72 Nm (page 179) once the new element is seated.
Manual Section: Hydraulic System MaintenanceEngine cranks slowly or fails to fire after sitting, no obvious fuel gauge issue
Confirm the fuel shutoff valve is open and the tank has adequate fuel. Scan the status screen for fault codes per page 63. Inspect the water-separator bowl for water or sediment and drain it if contaminated, following the maintenance schedule. Torque the fuel filter to 30 Nm (page 176) each time you replace it.
Manual Section: Fuel System MaintenanceFrequently Asked Questions
How do I reset the JCB TM320 transmission fault code?
Push the enter button L to clear non-critical transmission codes from the status screen. That only wipes the display, though, not the underlying fault, so if the code returns, contact your JCB dealer for assistance.
What does the JCB TM320 error code mean?
Codes use the J2012 Standard, where the prefix names the system: P for Powertrain (engine and transmission), B for Body items, C for Chassis items, and U for Network. For specific LLMC codes, see Table 6 on page 73, which describes entries like "Calibration tip point" or "Calibration error" for codes such as B104C-67 or B1050-29.
How do I clear JCB TM320 hydraulic fault codes?
For non-critical hydraulic codes, press the enter button L to drop them from the status screen. This clears the display only, not the root issue, so contact your JCB dealer for assistance if the fault comes back.
What are the torque specs for JCB TM320 wheel nuts?
Front and rear wheel nuts both tighten to 680 Nm (500 lbf ft). On new machines, or after a wheel comes off, recheck that torque every two hours until the readings hold steady.
What format is this manual in?
A 220-page searchable PDF, downloaded the moment you check out. Open it on a laptop, tablet, or phone and take it straight to the shop floor.
Can I print specific sections of this manual?
Yes. The PDF carries no DRM, so you can print any page or section you need. It works with any standard printer.
Document Quality
This document is a high-quality scanned PDF with an accurate OCR layer, allowing you to search and copy the full text. The text throughout is crisp and consistently easy to read, with no blurriness or fading. Diagrams and illustrations are primarily clear raster images, with all labels remaining readable. The pages are clean, free from scan artifacts, stains, or skewed content, and there are a few intentionally blank filler pages as noted in the original document.
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