DOSH Forklift Operator study materials
DOSH Forklift Operator study resources

DOSH Forklift Operator: Refuelling, Recharging and Hazardous Conditions

DOSH Forklift Operator · Work through your exam, one topic at a time.

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Refuelling, Recharging and Hazardous Conditions

This domain tests energy-source hazards: diesel, LPG, lead-acid batteries and the environments where forklifts operate. The exam expects control of ignition, ventilation, PPE and spill response.

Core rules

  • General refuelling: engine off, no smoking or open flame, designated area, spill kit available, PPE as required, and no mobile phone use if site rules prohibit it. Clean up spills immediately.
  • LPG: change cylinders only in a ventilated area, check seals and connections, close the valve when parked, and leak-test with soap solution, never a flame. Store cylinders upright and secured.
  • Battery charging: lead-acid charging produces hydrogen. Charge in a ventilated, designated area with no ignition sources. Wear acid-resistant gloves and eye protection; know the eyewash and spill kit location. Switch the charger off before disconnecting to reduce arcing.
  • Flammable atmospheres: use explosion-protected trucks rated for the zone. Diesel or LPG trucks in confined spaces can produce carbon monoxide.
  • Hazardous conditions: wet or oily floors, dock edges, high winds, poor lighting and steep ramps require reduced speed or a stop-work decision.

Worked example

An operator plans to charge a battery in a closed storeroom next to a smoking area. Reasoning: charging releases hydrogen, and a closed room allows accumulation; the smoking area adds an ignition source. The task must move to a ventilated charging bay with no ignition sources. The operator needs acid PPE, eyewash access and a spill kit before connecting the charger.

Traps

  • Using a flame to check for an LPG leak.
  • Charging a battery in an aisle or unventilated room.
  • Using water on a live electrical or battery fire.
  • Refuelling with the engine running.
  • Ignoring carbon monoxide risk from LPG or diesel trucks indoors.