When a diesel lift truck won't crank because the operator presence system reads the seat as empty, the answer sits in the Utilev UT80P DSL, UT100P DSL operator manual PDF, a 128-page book (OEM ID 76501367) for this internal combustion counterbalanced forklift truck. Wiring diagrams lay out the circuits behind starting, travel direction, seat belt, hydraulic function and park brake protection, plus the abnormal symptoms each fault produces. Service intervals follow the hour meter from the 8-hour shift check through 40, 166, 1000 and 2000 hours, backed by a load capacity chart, recommended oils table and lubrication diagram. Fill the hydraulic reservoir to 110 to 120 L, budget 25 L of transmission fluid, and set the drain plug at 29 to 39 Nm. An intermittent seat switch fault can eat a whole shift. Bookmarks and a live text layer take you straight to the interlock wiring, and your truck is lifting pallets again before the next shift.
What's Inside This Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Precautions for Use | 5-7 | Control and Alarm Devices, Load Capacity, Mast Tilt, Incline Operation, Refuelling, Accumulator |
| Main Parts and Components | 8-34 | Instruments, Controls and Switches, Other |
| Operating Rules | 35-42 | Leakage Checks, Maintenance Safety, Fuel Level Inspection, Exhaust Ventilation, Load Stability, Personal Protective Equipment |
| Maintenance | 43-65 | Daily/Shift Maintenance, Weekly Maintenance, Monthly Maintenance, Six-Month Maintenance, Annual Maintenance |
| Truck Structure and Stability | 66-70 | Lifting Device, Fulcrum, Centre of Gravity, Stability Triangle, Load Centre Distance, Load Capacity Chart |
| Operation | 71-75 | Starting Procedure, Engine Warm-Up, Driving Controls, Gear Shifting, Steering, Parking |
| Storage | 76-77 | Daily Storage, Long-Term Storage |
| Maintenance | 78-110 | Regular Maintenance Schedule, Bolt and Screw Tightening Torque Table, Regular Replacement of Select Parts, Recommended Oils Table, Lubrication System Diagram |
| Forklift Hoisting, Transport and Towing | 111 | |
| Main Technical Specifications | 112 | Rated Load, Lift Height, Travel Speed, Tractive Effort, Wheelbase, Diesel Engine Specifications |
| Operation and Maintenance of Lead-Acid Battery | 113-117 | Battery Storage, Electrolyte Level, Battery Charge Indicator, Charging Procedure, Electrolyte Exposure First Aid |
| Operator Presence Sensing System (Required in Most Markets) | 118-124 | Starting Protection, Forward and Reverse Protection, Seat Belt Protection, Hydraulic Function Protection, Park Brake Protection, Abnormal Function Symptoms |
| Directives and Standards | 125-126 | Machinery Directive, Noise Directive, ISO Standards, Vibration Parameters, Electromagnetic Compatibility |
| Maintenance Records | 127-128 | Date, Repair and Maintenance Work, Signed, Notes |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Drain plug tightening torque | 29-39 Nm | p. 55 |
| Water separator valve drop | 25.4 mm | p. 49 |
| Transmission oil filter tightening | 1/2 - 3/4 of a turn | p. 56 |
| Hydraulic oil reservoir capacity | 110 - 120 L | p. 94 |
| Hydraulic transmission fluid capacity | 25 L | p. 94 |
| Hydraulic system high-pressure hoses service life | 2 years | p. 93 |
| Hydraulic system inner seals and rubber parts service life | 2 years | p. 93 |
| Brake hose or rigid pipe service life | 1-2 years | p. 93 |
| Brake fluid cup service life | 2-4 years | p. 93 |
| Battery Voltage/Capacity | 24/90/20h | p. 112 |
| UT80P DSL | ||
| Rated Lifting Capacity | 8000 kg | p. 112 |
| UT100P DSL | ||
| Rated Lifting Capacity | 10000 kg | p. 112 |
