Specifications
| Fuel | Diesel |
|---|---|
| Coolant capacity | 18.5 L |
Maintenance & consumables
for the John Deere 6068 Series| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | 138838-003 | 250 hr | buy | ||
| Fuel filter | 138838-002 | 250 hr | buy | ||
| Oil filter | 138838-001 | 1080 hr | buy | ||
| Belt | water pump driving belts | 138838-005 | 250 hr | buy | |
| Coolant | 14.7 L | — | 8760 hr | ||
| Oil | 14.2 liters | — | 250 hr |
Common questions
What engine does the Clarke JU6 use?
The Clarke JU6 is powered by the John Deere 6068 Series engine.
What fuel does the Clarke JU6 use?
The Clarke JU6 runs on Diesel.
Troubleshooting
2Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| A high coolant temperature alarm condition | The primary cause of the overheat must be determined and the cause corrected to prevent a recurring overheat event. | 1) The coolant should be drained (after de-energizing the coolant heater) 2) Replace the engine thermostat(s) 3) Remove the engine water pump and inspect the impeller and seal for damage, replace as necessary. Reassemble and refill coolant according to the Installation and Operations Instruction Manual. 4) Run the engine to verify normal operating temperature. |
| Cavitation | Cavitation is a condition that occurs when bubbles form in the coolant flow in the low pressure areas of the cooling system and implode as they pass to the higher pressure areas of the system. This can result in damage to cooling system components, particularly the water pump impeller and cylinder liners. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
12| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 138838-001 | Clarke OE Filter | 1 | Oil filter | buy |
| 138838-002 | Clarke OE Filter | 1 | Fuel filter | buy |
| 138838-003 | Clarke OE Air Cleaner | 1 | Air filter | buy |
| 138838-004 | Air Intake Filter | 2 | Air filter | buy |
| 138838-005 | Clarke OE Belt | 1 | Belt | buy |
| 138838-006 | 12V, 450CCA | 1 | Battery | buy |
| 138838-007 | NGK Iridium | 1 | Spark plug | buy |
| RE46686 | Plug | 1 | Oil filter | buy |
| TY26575 | COOL-GARD II | Coolant | eBay $38.25 | |
| 23509536 | medium strength threadlocker (i.e. Loctite – blue #64040) | Service part / kit | buy | |
| C073082 | Refer to TSP-M Operators Manual for more information (document C138534) | Service part / kit | buy | |
| C125781 | Clarke Pocket Scale | Service part / kit | buy |
Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | |||
| Standby |
Available documents
BrochureEngine specService manualspec_sheet