Cellboost BOXER 999-823 Manual Do Utilizador

The following procedures will assist you in determining the potential cause of a machine 
operating problem.

Starter does not turn the 
engine over.

• Trencher control lever is either 

in Forward or Reverse position 
and the operator presence 
control is depressed.

• Move lever to neutral 

position.

• Release operator presence 

control.

• Battery is dead.

• Charge the battery.
• If battery does not hold a 

charge, replace the battery.

• Electrical connections are 

corroded or loose.

• Check electrical connections 

for good contact.

• Remove cables from battery 

terminals and fully clean 
battery terminals and cable 
clamps.

•  If the cable clamps cannot be 

properly cleaned, replace 
connectors.

• Relay or starter switch is 

defective. 

• Contact Authorized Service 

Dealer.

• Engine is in hydraulic lock due 

to a cylinder filled with fuel.

• Allow engine to cool before 

attempting this procedure.

• Remove spark plugs and turn 

engine over to pump excess 
fuel from engine cylinder.

• Make sure to clean up any 

spilled fuel before attempting 
to start the engine.

Engine will not start, 
starts hard, or fails to 
keep running.

• Trencher control lever is not in 

neutral position.

• Move lever to neutral 

position.

• Fuel tank is empty.

• Fill fuel tank with fuel.

• Air cleaner is dirty.

• Clean air filter housing and 

replace the filter elements.

• Spark plug dirty or fouled.

• Replace spark plug.

• Dirty or contaminated fuel filter.

• Replace fuel filter.

• Dirt, water, or stale fuel is in fuel 

system. 

• Drain fuel in tanks into an 

appropriate storage container 
and dispose of bad fuel 
properly.

• Refill fuel tanks with fresh, 

clean fuel.

• Replace fuel filter.

• 15 Amp fuse blown.

• Replace fuse.