A blown fuse on the hydraulic control unit can leave a rough terrain forklift truck with a dead boom, and the 173-page Manitou MLT625-75 H operator manual PDF (OEM ID 51900001) is the factory book that shows you where to look. Written for both the H and H S1-E3 builds, it runs from operator safety rules and laden or unladen operating instructions through instruments, controls and attachment pickup. Electrical and hydraulic schematics fill roughly the last quarter of the book, with connector positions and wiring codes, while the servicing schedule sets out the daily or 10-hour and 50-hour checks. Fill the engine with 11.2 L of oil and the cooling circuit with 12 L, and replace F7, the hydraulic ECU supply fuse, only with a 15A part. Fuse hunting by flashlight eats half a shift. Bookmarked and text-searchable, the PDF brings the right page up fast so your machine is lifting loads again.
What's Inside This Manitou MLT625-75 H, MLT625-75 H S1-E3 Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Rough Terrain Forklift Truck General Safety Standards | 7-24 | Operator Training Qualifications, Operating Safety Rules and Practices |
| Operating & Safety Instruction | 25-52 | Instructions to the Company Manager, Instructions for the Operator, Operating Instructions Unladen and Laden |
| Description | 53-86 | Identification of the Lift Truck, Instruments and Controls |
| Maintenance | 87-122 | Servicing Schedule, Daily or Every 10 Hours Service, Every 50 Hours Service |
| Attachments | 123-129 | Picking Up the Attachments |
| Electrical & Hydraulic Schematic | 130-173 | Codes on Electrical Schematic, Position of the Connectors |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Hydraulic transmission electronic control unit fuse | 10A | p. 73 |
| F4 Transmission electronic control unit fuse | 10A | p. 73 |
| F7 Hydraulic electronic control unit power supply fuse | 15A | p. 73 |
| Engine Oil Capacity | 11.2L | p. 94 |
| Cooling Circuit Capacity | 12L | p. 94 |
| Fuel Tank Capacity | 63L | p. 94 |
| Hydraulic Oil Tank Capacity | 115L | p. 94 |
| Wheel Nuts Tightening Torque (Front) | 630 N.m ± 15% | p. 99 |
| Wheel Nuts Tightening Torque (Rear) | 630 N.m ± 15% | p. 99 |
Manitou MLT625-75 H, MLT625-75 H S1-E3 Common Problems This Manual Covers
Manitou MLT625-75 H maintenance key showing on the hour meter screen with an audible beep
Press the display button to bring the error code up on the upper screen. Press it again to loop through each code if several are stored. Write down every number and match it against the hydrostatic transmission, man-machine interface and telescope/attachment lists on page 71. Then contact your dealer and quote those codes.
Manual Section: Error Codes (Hydrostatic Transmission, Man-Machine Interface, Telescope/Attachment) p. 71Several hydrostatic transmission error codes at once, such as 520201 electronic control unit voltage fault
Check the fuses before you go after sensors, because page 71 notes that one faulty fuse can throw several error codes. Stop the engine, remove the key and disconnect the battery before working on the electrical circuit, as page 48 requires. Inspect the F4 transmission control unit fuse (10A) and the F7 hydraulic control unit fuse (15A) on page 73. If the codes stay, call your dealer.
Manual Section: Error Codes (Hydrostatic Transmission, Man-Machine Interface, Telescope/Attachment) p. 71Seat sensor fault code 520300 showing on the display with the maintenance key
Verify the code on page 71, where 520300 is listed as a seat sensor fault in the telescope/attachment group. Stop the engine, remove the key and disconnect the battery before touching the electrical circuit, per page 48. Then check fuse F4 (10A) on page 144, which feeds the transmission control unit, the seat contact and the JSM. If the fuse is good or the code comes back, contact your dealer and give them the code.
Manual Section: Error Codes (Hydrostatic Transmission, Man-Machine Interface, Telescope/Attachment) p. 71Engine needs fuel system bleeding after running out of fuel or replacing a fuel system component
Fill the tank with the engine stopped, with no smoking or flame nearby, and stop short of the maximum level, as page 48 warns. Following page 117, open the engine bonnet, set a receptacle under drain port 1 and unscrew ring 2 by two or three turns to drain water from the water trap. Retighten ring 2, then bleed the injection pump at its bleeder screw.
Manual Section: Fuel System Bleeding p. 117Hydraulic oil leaking from a hose or union on the load handling circuit
Stop the engine and remove the ignition key before any work. Never loosen unions, hoses or any hydraulic component while the circuit is under pressure (page 48). Repair the leak right away, even a minor one. Any work on the load handling circuit beyond the maintenance chapter is forbidden, and balancing valves and accumulators are dealer-only jobs. Refill only with recommended, uncontaminated oil; the tank holds 115L (page 94).
Manual Section: Hydraulic System Maintenance p. 48Damaged or incorrectly inflated tyre needing a wheel change on the public highway
Remove the truck from service until the tyre is fixed, because page 30 forbids running on tyres that are incorrectly inflated, damaged or excessively worn. Follow the wheel change procedure on page 117. Then torque the front and rear wheel nuts to 630 N.m ± 15% as specified on page 99, and recheck the nuts before putting the truck back to work.
Manual Section: Wheel Change Procedure p. 117Frequently Asked Questions
How do I clear the maintenance reminder on a Manitou MLT625-75 H?
Contact your dealer to carry out the necessary maintenance operations and reset the maintenance interval. The maintenance key will remain displayed on the hour meter screen until the required repairs have been carried out. p. 71
What does error code 520201 mean on a Manitou MLT625-75 H?
Error code 520201 indicates a hydraulic transmission electronic control unit voltage fault. p. 71
What is the hydraulic oil tank capacity on the Manitou MLT625-75 H?
The hydraulic oil tank has a capacity of 115 liters (30.4 gallons). p. 94
What is the tightening torque for the wheel nuts on the Manitou MLT625-75 H?
The tightening torque for both front and rear wheel nuts is 630 N.m (465 lbf/ft) ± 15%. p. 99
What do I get after purchasing this Manitou MLT625-75 H manual?
Straight to your device: 173 pages of searchable Operator Manual, downloadable the moment payment goes through.
Am I free to print this Manitou MLT625-75 H Operator Manual?
Yes. Print the pages you need for the job in your own shop, and bin them when they get greasy.
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