Keeping a Mitsubishi PW23 or PW23L electric walkie lifting and braking to spec comes down to 155 pages of OEM data, and this Mitsubishi PW23, PW23L service manual PDF (part number 99759-7E100) puts it all in one file. Roughly a third of the book belongs to the electrical chapter, with full electrical schematics, the X6 connector pin layout, and event code tables that tie each fault message to its likely cause. Hydraulic coverage pairs the lift circuit schematic with pump motor replacement and lift cylinder teardown, while the service data section closes out with torque tables, recommended oils, and refill capacities. Set the drive brake air gap to 0.2 to 0.5 mm (0.008 to 0.020 in.), then bring the brake mounting screws to 5.5 Nm (4.05 ft. lbs.). Intermittent tiller faults eat whole afternoons. With bookmarked, text-searchable pages, you pin down the failed component before you order, so your parts request carries the right number the first time.
What's Inside This Mitsubishi PW23, PW23L Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety Precautions | 3-4 | Jacking Safety, Fork Section, Tie-Down for Transport, Towing, Welding Safety, Static Safety |
| General Information and Features | 5-21 | Glossary, Safety, Jacking Safety (Fork Section, Jacking Section), Tie-Down for Transport, Towing, Welding Safety, Static Safety, Location of Controls |
| Common Maintenance Practices | 22-31 | AC Controller Output Transistor Test, Fuses (Test/Inspection), Diodes (Test), Wire Harness (Inspection), Power Cables, Switches (Test/Inspection) |
| Options | 32-61 | Display Instrument (Discharge Status Indication, Standard Battery, Maintenance-Free Battery, Discharge Monitor Function, Error Messages, Display for Parameter Change) |
| Special Applications | 62-63 | Cold Storage Specifications, Environment and Operation of the Electric Walkie, Cold Storage Modifications |
| Storage and Transportation | 64-67 | Long-Term Storage (Measures Required While Removed From Service, Placing the Electric Walkie Back Into Service), Electric Walkie Shipping, Transportation by Crane |
| Maintenance | 68-71 | Maintenance Schedule (Inspection Precautions) |
| Battery Maintenance | 72-79 | Battery Safety, Battery Removal PW23/PW23L, Battery Installation PW23/PW23L, Battery Inspection and Care, Battery Cleaning Procedure |
| Hydraulics | 80-87 | Hydraulic Troubleshooting Guidelines, Hydraulic Schematic, Hydraulic Unit (Removing the Hydraulic Unit, Replacing the Pump Motor, Installation), Torque Specifications |
| Electrical | 88-139 | Electrical Troubleshooting Guidelines (Checking Shorts: Battery to Truck Frame, Components to Truck Frame), Checking the Electric Fuses, Electrical Layout, Event Codes |
| Service Data | 140-151 | Additional Torque Specifications, Recommended Oils and Lubricants, Refill Capacities |
| Planned Maintenance | 152-155 | Inspection and Maintenance Schedule |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Drive brake air gap | 0.2 to 0.5 mm (0.008 to 0.020 in.) | p. 27 |
| Brake mounting screws torque | 5.5 Nm (4.05 ft. lbs.) | p. 27 |
| Control handle head mounting screws torque | 2+0.5 Nm (1.47+6.5 ft. lbs.) | p. 25 |
| Integrated charger power cord voltage | 115 VAC + 10% | p. 75 |
| Integrated charger power cord frequency | 60 Hz + 4% | p. 75 |
| Voltage difference between cells | no more than 0.2 volt | p. 78 |
| Baking soda cleaning solution | 1 pound (454 grams) baking soda and 1/2 gallon (1.9 liters) of hot water | p. 74 |
| Adapter torque | 50 Nm (36.88 ft. lbs.) | p. 81 |
| Angle Swivel Screw Connection torque | 35 Nm (25.81 ft. lbs.) | p. 81 |
| Voltmeter reading (Battery to Truck Frame) | no more than 3 volts | p. 88 |
| Resistance to frame (serious short) | less than 1000 ohms | p. 89 |
| Leakage current (truck system passes) | less than 0.001 ampere | p. 89 |
Mitsubishi PW23, PW23L Common Problems This Manual Covers
Mitsubishi PW23/PW23L walkie AC drive controller showing E016, E018 or E019 error code on display
Turn the key switch OFF and disconnect the battery before any service, as page 16 requires. Remove all power wires from the controller and set your meter to diode test. With the meter (+) lead on controller (+), probe L1, L2 and L3 for 0.5 volts and rising. Reverse the leads and you should read 0.5 volts steady. Repeat both checks on the controller (-) terminal, following page 22.
Manual Section: AC Controller Output Transistor (MOSFETS) Test p. 22Drive motor fuse 1F1 or pump motor fuse 2F1 showing overheating, discoloration or cracking
Disconnect the battery before you inspect or service anything, per page 16. Pull the fuse or free one side from the circuit. Set the ohmmeter to Rx1 and measure across it; anything over 1 ohm fails, per page 22. Replace a damaged fuse with the correct rating from page 91: 1F1 drive motor is 100 A and 2F1 pump motor is 150 A.
Manual Section: Fuses Test/Inspection p. 22Voltmeter reads more than 3 volts between battery terminal and truck frame during short check
Turn the key switch OFF and pull up on the battery plug. Then check each battery terminal against unpainted frame on the 50 volt DC scale, following page 88. If you read over 3 volts, remove the battery, clean it thoroughly, reinstall it and retest. Never lay tools or metal objects on top of the battery (page 72). If excessive voltage remains, have the battery checked for internal leakage.
Manual Section: Electrical Troubleshooting Guidelines p. 88Hydraulic lines leaking at connections with loose or damaged fittings, tubing, vents or seals
Inspect every hydraulic line and component for leaking connectors, loose fittings and damaged tubing, vents or seals, following page 80. Torque the L10XG1/4A-E-St adapter to 50 Nm and the angle swivel screw connection to 35 Nm, as shown on page 81. Top up the hydraulic oil after repairs; the system holds 0.24 gal. (page 151).
Manual Section: Hydraulic Troubleshooting Guidelines p. 80Event message 1 06 safety switch inputs out of sequence from deadman or tiller switch
Disconnect the battery before you inspect anything, per page 16. Check the wire connections to the deadman and tiller safety switches, following page 95. Label the wires, isolate the switch and measure it on a low ohmmeter scale. Closed should read under 1 ohm and open should read over 10 megohms (page 24). If it fails either reading, replace the safety switch.
Manual Section: Event Messages p. 95Event message 1 14 speed signal from motor out of sequence with no speed sensor signal
Clear any mechanical blockage in the drive system first. Then check the speed sensor power supply and its wire connection, following page 97. If the sensor still sends no signal after a short period of motor control, replace the speed sensor. Replace the signal evaluating controller only as the last step.
Manual Section: Event Messages p. 97Frequently Asked Questions
How do I reset a Mitsubishi PW23 or PW23L forklift?
To reset the truck, press the (O)-key (reset key) on the keypad. This returns the truck from any position to its basic setting, which is switched off and non-operational. p. 37
How do I clear Mitsubishi PW23 fault codes?
Most errors will cause the emergency stop to be triggered. The error display is maintained until the control circuit is switched off (code lock). p. 34
What is the torque spec for the control handle head mounting screws on a Mitsubishi PW23, PW23L?
The torque specification for the control handle head mounting screws is 2+0.5 Nm (1.47+6.5 ft. lbs.). p. 25
What is the correct drive brake air gap on the Mitsubishi PW23, PW23L?
The air gap (L) between the armature plate (5) and the magnet body (7) should be between 0.2 to 0.5 mm (0.008 to 0.020 in.). If the gap is greater than 0.5mm, the brake disk (4) must be replaced. p. 27
What is the torque spec for the hydraulic unit adapter on the Mitsubishi PW23, PW23L electric walkie?
The torque specification for the adapter L10XG1/4A-E-St is 50 Nm (36.88 ft. lbs.). p. 81
How quickly can I access this Mitsubishi PW23 manual after buying?
Immediate download of the complete 155-page searchable Service Manual. Access it on any device, from a laptop at your desk to a phone in the field.
Can I print specific sections of this Mitsubishi PW23 Service Manual?
Yes. Many buyers print one chapter at a time for their own shop and keep the rest on a tablet.
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