Specifications
DFP4 2011 Operation Manual   
13
NOTE: During and after the trial run check for the following: 
•  Leaks 
•  Oil level (see section 6.1.2) 
•  Top off with oil; if necessary (see section 3.1.1.) 
•  Re-tension the V-belt (see section 6.5) 
3.1.4. Additional Maintenance Work 
When commissioning a new or reconditioned engine all of the following MUST be done: 
•  Change the lube oil (see sections 6.1.1. & 6.1.2.) 
•  Change the oil filter cartridge (see section 6.1.3.) 
•  Change the fuel filter cartridge (see section 6.2.1.) 
•  Check V-belts and re-tension as needed (see section 6.5) 
•  Check engine for leaks 
•  Check engine mounts, retighten if necessary, (see section 9.2) 
•  Check valve clearance, adjust if necessary, (see sections 5.1 & 6.6.1) 
3.2. Starting 
This section illustrates the method for starting your engine. 
Before starting the engine, be mindful of the warnings below: 
When manually starting the engine, make sure that the cooling water 
valve is open to the engine’s heat exchanger. 
Make sure that nobody is standing in the immediate vicinity of the engine 
or driven components. 
After any repair work: Check that all guards have been replaced and 
that all tools have been removed from the engine. 
CAUTION: If the speed governor has been REMOVED, the engine must 
NOT be tested under any circumstances. 










