Yardworks YW50DHP Instruction Manual page 18

Cleaning the Pump Body
Use a moist cloth to wipe down the pump housing (4). Allow to dry thoroughly before storing in a dry location that
is protected from bad weather conditions.
If the pump is not going to be used for a long period of time, it is advisable to rinse with water. Ensure the pump
is completely dry before storing.
Checking the Bolts
Regularly check all the bolts on the diesel engine and pump body to ensure all bolts are adequately tightened.
Purging the Fuel System of Air
In some cases air may develop in the fuel lines restricting the fuel from entering the injector.
To bleed air from the fuel system follow the below instructions.
Caution: Ensure the throttle is in the off position before purging the fuel system of air.
1. Remove the fuel injection pipe using a 17mm open ended spanner by rotating
the nut in an anti-clock wise direction (towards the exhaust) and pulling out the
pipe from the injector (Fig. 16).
2. Open the fuel tap (9) by rotating in a clock wise direction to the "O" position (Fig. 17).
3. Press the decompression lever (14) down.
4. Firmly grasp the recoil starter (7) handle and pull slowly until the compression
position has been reached and then let the handle return to the original position.
5. Repeat steps 3 and 4 above until a steady stream flows from the fuel pipe.
6. Refit the fuel pipe into the injector and re-tighten the nut to secure the pipe into
the injector.
MAINTENANCE (cont.)
17
Fig. 16
Fig. 17