6.1 General Maintenance Safety Rules

Before inspecting, servicing, adjusting, repairing, or cleaning a Telescro telehandler, it must be ensured that the maintenance work is carried out under safe, controlled, and compliant conditions.

Basic Principle

All maintenance work must be based on the conditions that the machine is stable, hazards are isolated, and personnel are protected.

Improper maintenance may not only damage the machine, but may also result in:

• personal injury;
• machine failure;
• fire risk;
• environmental contamination;
• accidents during subsequent operation.

6.2 Requirements for the Maintenance Work Environment

Maintenance and inspection work must be carried out in an area with good ventilation, adequate lighting, and safe ground conditions.

Requirements

• inspections carried out with the engine running must be performed in a well-ventilated area;
• when the engine must run in an enclosed space, exhaust control measures must be taken;
• the ground must be level, dry, free of oil contamination, and free of tripping hazards;
• unauthorized persons must be kept out of the maintenance area;
• sufficient space must be provided for safe work and component removal or installation;
• warning signs or isolation zones must be set up where necessary.

Prohibited Actions

• running the engine for an extended period in an enclosed space with insufficient ventilation;
• carrying out routine maintenance in an environment with high heat, open flames, flammable materials, or explosion risk;
• carrying out hazardous repair work where the ground is slippery, lighting is insufficient, or working space is restricted.

6.3 Maintenance Personnel Clothing and PPE Requirements

Maintenance personnel must wear personal protective equipment suitable for machinery maintenance work and must avoid any clothing or accessories that could become caught in the machine.

Requirements

• wear well-fitted, durable, and protective work clothing;
• wear the necessary gloves, safety glasses, safety footwear, and other protective equipment according to the task;
• long hair must be tied back and properly secured;
• where necessary, wear a face shield, hearing protection, or a protective apron.

Prohibited Actions

• wearing loose clothing during maintenance work;
• wearing necklaces, bracelets, rings, earrings, or similar accessories during mechanical maintenance;
• allowing long hair to hang loose near moving machine parts;
• wearing non-slip-resistant footwear when performing machine maintenance.

6.4 Shutdown and Isolation Requirements

Unless a particular inspection specifically requires the machine to be running, all maintenance and adjustment work must be carried out only after the machine has been completely shut down.

Standard Requirements

Before maintenance begins, at least the following actions must be completed:

1. Park the machine in a safe location.
2. Place the forward/reverse control lever in neutral.
3. Fully retract the telescopic boom.
4. Lower the forks or attachment to the ground.
5. Stop the engine.
6. Remove the ignition key.
7. Disconnect the main power supply where necessary.
8. Confirm that the machine cannot move, lift, or release stored pressure unexpectedly.

Special Note

If testing, diagnosis, or calibration must be carried out with the machine running:

• the work must be performed by qualified technicians;
• all surrounding personnel must be kept out of the danger zone;
• measures must be taken to prevent unintended movement and entanglement.

Prohibited Actions

• removing or installing components casually while the engine is running;
• entering hazardous maintenance areas before the engine has been shut down;
• carrying out hydraulic, transmission, or structural maintenance before the machine is fully stable.

6.5 Principle of Timely Repair

Whenever a fault, abnormal condition, damage, or safety hazard is found on the machine, it must be dealt with as soon as possible. Operation with known defects is prohibited.

Conditions Requiring Prompt Action Include, But Are Not Limited To

• hydraulic leakage;
• fuel leakage;
• coolant leakage;
• electrical abnormalities;
• loose fasteners;
• cracks, deformation, or abnormal wear;
• abnormal warning lights;
• abnormal braking, steering, or hydraulic functions;
• abnormal noise, odor, overheating, or other unusual conditions.

Principle

Any "small problem" that is ignored may develop into machine downtime, an accident, or a costly failure.

6.6 Leakage Handling Requirements

Any fluid leakage must be treated as a maintenance issue requiring corrective action and must not be ignored over time.

Common Types of Leakage

• hydraulic oil;
• engine oil;
• fuel;
• coolant;
• transmission oil / drive oil;
• brake fluid, where applicable.

Requirements

• once leakage is found, the source of the leakage must be identified immediately;
• the machine must not continue heavy-duty operation until safety has been confirmed;
• the leakage area must be cleaned promptly to prevent slipping, fire, or contamination;
• seals, fittings, hoses, or damaged components must be replaced where necessary.

Prohibited Actions

• using "topping up fluid" as a substitute for repairing a leak;
• continuing long-term operation with an obvious leak;
• ignoring drips, spray leaks, seepage, or accumulated oil contamination.

6.7 High Temperature and Burn Hazards

During maintenance, the engine, exhaust system, radiator, hydraulic components, and other working systems may remain at high temperature and may present burn, spray, and pressure-release hazards.

High-Risk Areas Include

• the engine block and surrounding area;
• the exhaust pipe, muffler, and turbocharger area;
• the radiator and cooling system;
• the hydraulic tank and high-temperature hydraulic lines;
• the transmission system and brake components;
• the attachment connection area after high-temperature operation.

Operating Requirements

• do not touch hot components with bare hands before they have cooled down;
• before opening the engine cover, radiator cap, or hydraulic system, confirm that temperature and pressure have dropped;
• use appropriate protective tools and personal protective equipment when handling hot components;
• when removing components from liquid systems at high temperature, prevent splash injuries.

Prohibited Actions

• directly opening a cooling-system pressure cap while the machine is hot;
• removing hydraulic fittings before confirming that the system is depressurized;
• using hands directly to check hot areas or high-pressure leak points.

6.8 Environmental Protection and Waste Disposal Requirements

Waste oil, used fluids, filters, wiping cloths, seals, batteries, and damaged parts generated during maintenance must be sorted and disposed of in accordance with environmental requirements.

Requirements

• all waste fluids must be collected in designated containers;
• oil, filters, batteries, and contaminated materials must not be discarded arbitrarily;
• removed components must be classified and managed in accordance with local regulations and company requirements;
• when cleaning the maintenance area, prevent contaminants from entering the ground, drains, or the natural environment.

Principle

Maintenance work must not only ensure machine safety, but must also comply with environmental protection requirements.