Specifications
DFP4 2011 Operation Manual   
49
6.6. Engine Cleaning 
The following section contains guidelines for cleaning your engine. 
6.6.1. Cleaning the Engine 
Turn the engine OFF before cleaning. 
Preparation:
1.  Switch off the engine 
2.  Remove the engine covers (replace them after cleaning) 
3.  Cover the electrical / electronic components and connectors (e.g. alternator, 
starter, governor and solenoid) 
4.  Clean with compressed air to dislodge loose particles 
Cleaning with a cold-cleaning solution:
1.  Spray the engine with a commercial cold-cleaning solution and allow it to react 
for approximately 10 minutes. 
2.  Spray the engine clean with a strong water jet, repeat if necessary. 
3.  Allow the engine to run warm so the remaining water can evaporate. 
Cleaning with a high-pressure devise: 
1.  Clean the engine with a jet stream (max spray pressure of 60 bar or 870 psi), max 
temperature of 90°C or 194°F). 
2.  Allow the engine to run warm so that remaining water evaporates. 










