Specifications

DFP4 2011 Operation Manual
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5. Service Schedules and Charts
This section describes the service plan that you should follow to keep your DEUTZ
engine in top running condition.
5.1. Service Plan
Item THE ITEMS BELOW ARE TO BE CHECKED EVERY YEAR
General
Check the engine for loose or damaged fittings, clamps, guards
Inspection
insulating blankets or wiring. Repair or replace as necessary.
Inspect V-belts for looseness or wear and tight connections.
Battery
Clean battery terminal posts, check for tight connections and
maintain electrolyte level .
NOTE: Replace as needed but do not exceed 5 years
Engine Oil
Replace oil
Oil Filter
Replace oil filter
Exhaust
Visually inspect the exhaust system hangers, supports and
system
flexible pipes for signs of leakage or rusting.
Repair or replace damaged piping.
Engine Crankcase Breather
Clean the engine crankcase breather
Fuel Filter
Replace the fuel filter
Fuel Pre-filter Element
Clean / change pre-filter element
Fuel Tank
Drain water and sediment from the fuel tank
Cooling Loop Solenoid and
Check for proper operation
Y-Trap (Not supplied by DEUTZ)
Power Wiring
Inspect and clean terminals on the starter, alternator
and the battery isolator.
Engine Control
Inspect the connections and tighten if necessary.
Panel
Be careful not to ground any circuits
Heat Exchanger
Inspect the heat exchanger conduits
Engine Operation
1. Start the engine: Run the engine for no less than 30 minutes
Test
2. Check for proper gauge readings
3. Check for noises and vibrations. Tighten loose components.
4. Perform backpressure test on the exhaust system.
Engine Over-speed Test
Perform over-speed test using the "Over speed" switch
Post-operation
1. Stop the engine
Inspection
2. Verify that the Mode Selector switch has been returned to "Automatic"
3. Ensure that the fuel tank is at least two-thirds full
4. Check for leaks in coolant hoses, fuel supply and return lines etc.