Welder

Checks to try, in order

1. Check the earth clamp is on clean, bare metal close to the weld.
2. Check the rod is gripped tight in the holder.
3. Scratch the rod like a match rather than stabbing it at the metal.
4. Turn the amperage up — too low and the rod sticks instead of striking.

Reference draft — always follow the manufacturer’s manual.

Checks to try, in order

1. Amperage is usually too low for the rod size.
2. Hold a slightly longer arc once it lights.
3. Snap a stuck rod free at the holder straight away so it does not overheat.

Reference draft — always follow the manufacturer’s manual.

Checks to try, in order

1. Engine-driven welders have a duty cycle. Let it idle and cool before starting again.
2. Check the air intakes are clear and the machine is not boxed in.
3. For long runs at high amps, the 300A trailer unit is the right machine.

Reference draft — always follow the manufacturer’s manual.

Likely causes

• Isolator off
• Seat / seat-belt / lap-bar interlock
• Controls not in neutral
• Flat battery

Checks to try, in order

1. Check the battery isolator / master switch is ON.
2. Sit in the seat, fasten the seat belt and lower the safety bar — interlocks prevent starting otherwise.
3. Put the controls in neutral and the hydraulic lockout lever in the locked position.
4. Check the battery terminals are tight and free of corrosion.

If the battery is flat, don't jump-start it unless you've been trained to — call the workshop.

Reference draft — always follow the manufacturer’s manual.

Likely causes

• Out of fuel / air in fuel
• Glow plugs not preheated
• E-stop engaged

Checks to try, in order

1. Check the fuel gauge. Diesel engines that run dry often need the fuel system bled before they'll start.
2. Turn the key to the preheat position and wait for the glow-plug light to go out before cranking.
3. Check the emergency stop button isn't pressed in.
4. Crank for no more than 10–15 seconds at a time, then let the starter rest.

Reference draft — always follow the manufacturer’s manual.

Likely causes

• Lockout lever engaged
• Cold oil
• Low hydraulic oil
• Leak

Checks to try, in order

1. Raise the hydraulic lockout / safety lever or disengage the control lock.
2. Let the machine warm up for a few minutes before working it hard.
3. Check the hydraulic oil sight glass with the machine level and attachments lowered.
4. Look for hydraulic oil leaks under the machine and at hose ends.

Never touch a pinhole hydraulic leak — high-pressure oil can inject through skin. Stop and report it.

Reference draft — always follow the manufacturer’s manual.

Checks to try, in order

1. Stop work, lower attachments to the ground and let the engine idle — don't shut a hot engine off abruptly unless told to by the alarm.
2. Check whether the radiator / cooler screen is blocked with dust, grass or debris.
3. Only check coolant once the engine is cold. Never open a hot radiator cap.

Red warning lights mean stop. Note the code or symbol and call the workshop before continuing.

Reference draft — always follow the manufacturer’s manual.