From cab controls and the MMI interface through load charts, daily maintenance and the attachment range, this 142-page Manitou MLT 840-115 PS and 840-137 PS operator manual PDF (OEM ID 647269 US) walks both telescopic lift trucks end to end. Load charts built to ANSI/ITSDF standards sit beside full machine dimensions, so you can check rated capacity at a given reach before the boom goes up. Maintenance fills the largest share of the book: lubricant and fuel levels, hydraulic and electrical checks, placing the jib safety wedge, welding, washing and transport, then attachment pickup and specifications to close. Fill the engine with 13 litres of oil and the cooling circuit with 23 litres, then torque the wheel nuts to 630 N.m ± 15 %. A particle filter regeneration prompt mid-shift is a bad time to hunt for the right switch. Bookmarked, searchable pages find it fast; your truck keeps lifting.
What's Inside This Manitou MLT 840-115 PS, MLT 840-137 PS Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Important Information | 3-4 | Instruction Manual, Safety Symbol, Equipment List, Technical Characteristics, Lift Truck Options, Maintenance Requirements |
| Operating and Safety Instructions | 5-30 | Instructions to the Company Manager (Site, Operator, Lift Truck, Maintenance) |
| Identification and Declaration | 31-41 | EC Declaration of Conformity, Safety Plates, Identification Plates, Engine and Gearbox Identification |
| Technical Characteristics | 42-47 | MLT 840-115 PS Specifications, MLT 840-137 PS Specifications, Tire Data, Hydraulic Circuit, Sound and Vibration |
| Dimensions and Load Charts | 48-49 | Machine Dimensions, Load Charts, ANSI/ITSDF Standards |
| Instruments and Controls | 50-67 | Driver's Seat, Ignition Switch, MMI Interface, Steering Selection, Heater and Air Conditioning, Fuses and Relays |
| Switches and Electrical Systems | 68-71 | Working Lights, Exhaust Particle Filter Regeneration, Fuses and Relays, Windscreen Wipers |
| Hydraulic Controls and Towing | 72-90 | Hydraulic Control Levers, Forward/Reverse Selection, Gear Selector, Towing Hook, Attachment Options |
| Maintenance | 91-128 | Placing the Jib Safety Wedge, Lubricant and Fuel Levels, Hydraulic, Electricity, Welding, Washing the Lift Truck, Transporting the Lift Truck |
| Optional Attachments for Use with the Range | 129-142 | Picking Up the Attachments, Technical Specifications of Attachments, Attachment Shields |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Wheel nuts tightening torque | 630 N.m ± 15 % | p. 103 |
| Engine Oil Capacity | 13 Litres | p. 98 |
| Cooling Circuit Capacity | 23 Litres | p. 98 |
| Fuel Tank Capacity | 143 Litres | p. 98 |
| Gear Box Oil Capacity | 23 Litres | p. 98 |
| Hydraulic Oil Tank Capacity | 175 Litres | p. 98 |
| Wheel Nut Tightening Torque | 630 N.m ± 15 % | p. 103 |
| Maximum Speed | 25 km/h | p. 74 |
| Battery Specification | 12 V - 180 Ah - 1000 A EN | p. 42 |
Manitou MLT 840-115 PS, MLT 840-137 PS Common Problems This Manual Covers
Manitou MLT 840-115 PS and 840-137 PS engine oil level low at daily pre-start check
Check the engine oil level with the engine stopped, following the service procedure on page 110. Top up with MANITOU oil; total engine capacity is 13 Litres on page 98. If the level keeps dropping between checks, replace the oil filter and inspect the crankcase ventilation using page 111.
Manual Section: Engine Troubleshooting p. 110Fuel pre-filter and fuel filter overdue for replacement at the scheduled engine maintenance interval
Check the maintenance schedule on page 100 for the fuel filter interval, then replace the fuel pre-filter and fuel filter following the engine service procedures on page 111. Keep the 143 Litres tank filled with clean fuel, listed on page 98, so contamination does not reach the new filters.
Manual Section: Engine Troubleshooting p. 111Hydraulic oil level low in the tank, return oil filter and suction strainer suspected of contamination
Check the hydraulic oil level and top up the tank, which holds 175 Litres per page 98. Replace the return oil filter, service the breather and inspect the suction strainer as laid out in the Hydraulic System Troubleshooting section. If you find contamination, follow the circuit decontamination procedure before running the boom again.
Manual Section: Hydraulic System TroubleshootingGear box oil level reading low during scheduled transmission maintenance with filter change due
Check the gear box oil level and top up with the specified oil; the gear box holds 23 Litres per page 98. Replace the gear box oil filter at the interval given in the maintenance schedule on page 101. Recheck the level after the filter change before putting the machine back to work.
Manual Section: Transmission TroubleshootingRadiator core clogged with debris and cooling liquid due for scheduled drain and refill
Clean the radiator core with the engine stopped and cold. At the interval listed in the maintenance schedule on page 100, drain the cooling liquid and refill the circuit, which holds 23 Litres per page 98. Recheck the level after the first warm-up run and top up if it drops.
Manual Section: Cooling System TroubleshootingBattery failure when turning the ignition switch, with a replacement battery needed for the machine
Test the battery and confirm its rating matches the 12 V - 180 Ah - 1000 A EN listed on page 42. Replace a failed battery with one of the same rating, following the battery replacement steps in the Electrical System Troubleshooting section. Check the fuses and relays on page 68 if the fault remains after fitting.
Manual Section: Electrical System TroubleshootingFrequently Asked Questions
How do I clear faults from the Man-Machine Interface computer?
To clear faults from the Man-Machine Interface computer, access the XPRT menu on the menu screen. Select the ERASE option, then choose MC to clear faults from the computer of the Man-Machine Interface. p. 66
What are the engine oil and oil filter replacement specs for the Manitou MLT 840-115 PS, MLT 840-137 PS?
The engine oil and oil filter should be replaced every 500 hours of service. Use the recommended MANITOU Oil GOLD (Part numbers: 5l: 786744, 20l: 786745, 209l: 787729) and the I.C. Engine Oil Filter (Part number: 796241). p. 96
What is the tightening torque for the wheel nuts on the Manitou MLT 840-115 PS, MLT 840-137 PS?
The wheel nuts must be tightened to a torque of 630 N.m ± 15% for both front and rear tyres. p. 103
How do I perform the "stationary lift truck" exhaust particle filter regeneration?
Ensure the lift truck is in a safe, ventilated place with the forward/reverse selector in neutral, parking brake applied, jib angle less than 5°, and engine water temperature greater than 60°C. Press the top of switch 1 for more than two seconds to begin the procedure. p. 123
What is the hydraulic oil tank capacity on the Manitou MLT 840-115 PS, MLT 840-137 PS?
The hydraulic oil tank has a capacity of 175 Litres. It is recommended to use MANITOU Oil Hydraulic ISO VG 46. p. 98
Is this Manitou MLT 840-115 PS Operator Manual a digital download?
You get a 142-page searchable PDF that downloads instantly after checkout. Open it on your laptop, tablet, or phone, and bring it right to the shop floor.
Can I print a copy of this Manitou MLT 840-115 PS Operator Manual for the shop?
You can. Print the sections you want for your own use and keep the file as your backup.
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