Doosan D50S-5 Operation & Maintenance Manual page 154

Typical Typical Example Example
Typical Example Typical Example
1. 1. Turn the wing nut counter clockwise to open the Turn the wing nut counter clockwise to open the
drain valve on the bottom of the drain valve on the bottom of the fuel filter.
2. 2. Drain some fuel (and any water) until clean fuel Drain some fuel (and any water) until clean fuel
flows from the filter. flows from the filter.
Maintenance Section Maintenance Section
Fuel Tank Filter Cap & Screen - Fuel Tank Filter Cap & Screen -
Clean Clean
Park the lift truck with the forks lowered, parking Park the lift truck with the forks lowered, parking
brake applied, transmission in neutral and the brake applied, transmission in neutral and the
engine stopped. engine stopped.
<DB58S> <DB58S>
Obtain a leak check squirt bottle or pump spray Obtain a leak check squirt bottle or pump spray
 
Fill the bottle with an approved leak check Fill the bottle with an approved leak check
 
Spray a generous amount of the solution on the Spray a generous amount of the solution on the
 
Wait approximately 15-60 seconds then perform Wait approximately 15-60 seconds then perform
 
Repair any leaks before continuing. Repair any leaks before continuing.
 
  Crank the engine through several revolutions. Crank the engine through several revolutions.
<D439E> <D439E>
fuel filter.
Repair any fuel leaks before continuing. Repair any fuel leaks before continuing.
 
Prior to any service or maintenance activity, Test Prior to any service or maintenance activity, Test
Fuel System for Leaks Fuel System for Leaks
153 153
Seat - Check, L Seat - Check, Lubricate
Typical Example Typical Example
bottle. bottle.
solution. solution.
fuel system fuel lines and connections, starting fuel system fuel lines and connections, starting
at the storage container. at the storage container.
a visual inspection of the fuel system. Leaks will a visual inspection of the fuel system. Leaks will
cause the solution to bubble. cause the solution to bubble.
This will energize the fuel lock-off and allow fuel This will energize the fuel lock-off and allow fuel
to flow to the pressure regulator/converter. to flow to the pressure regulator/converter.
Apply additional leak check solution to the Apply additional leak check solution to the
regulator/converter regulator/converter fuel fuel
housing. Repeat leak inspection as listed above. housing. Repeat leak inspection as listed above.
WARNING WARNING
ubricate
connections connections and and