Kubota DG972 E2, Applications Manual, Page: 64 / 93

Performance & Maintenance and Safety Check Sheet for Small SI Engines
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* If there are specification or structural changes at Customer's product, application must be rechecked and reported.
Unit model / serial no. :
Engine Model :
Checked place at :
Product Name :
Engine serial no. :
Loadng condition :
1. Engine oil :
Oil temp. (below 120 °C (248 °F) under max load
and below 110 °C (230 °F) at continuous operation)
- oil level checking
- oil supply
- oil draining
- oil filter replacement
checking items judged
2. Cooling system
- obstacles, radiator front and rear
- clearance, fan and radiator core / shroud
- prevention of re-circulation cooling air
- prevention dust of radiator
- checking, closed by dust on radiator
- capacity (radiator locally supplied)
- antifreeze coolant
- reserve tank
air to boil
(ATB = above 49 °C (120 °F), at continuous operation)
- water supply and level checking
- water draining
- fan belt adjustment
- fan best replacement
- danger of scald by overblown hot water
- danger of scald by damages of radiator cap, Hoses
3. Inlet and Exhaust
- "Exhaust Emission Check Sheet" agreement
- entrance of rain, dust and hot air from air cleaner
- capacity (locally supplied air cleaner)
- back pressure of muffler (locally supplied muffler)
- check, cleaning and replacement of air cleaner
Element
- objects, easy burn, on or over muffler
- exhaust direction
(not toward human being, battery, fuel system)
- cover to prevent a burn
- entrance of water from the exhaust exit by rain and
washing
- cover to prevent water, stone, etc (catalyst parts)
- position, combination with exhaust manifold
(catalyst parts)
6. Others
- no excessive force on engine speed control lever
- no resonance point between low and high engine
Operation
- engine oil, specified oil is used
-
cold starting ability, satisfactory for customer
Requirement
- PTO system, proper
- side PTO, correct
- belt tension drive, durable
- engine serial number, can be read
- engine maintenance interval, clarified
- guard for rotating
- cover at high temp. Parts / area for burn prevention
- safety label
- speed control through Kubota speed control lever
and/or governor lever
- emission lavel are visible on the machine
4. Fuel system
- filter at fuel tank, supply port
- waved fuel piping, fuel drop to fuel tank
- air bleeding, after fitter change or fuel empty
- electric fuel feed pump for low positioned tank
- fuel supply to fuel tank
- fuel draining from tank bottom
- air bleeding from fuel line
- check, cleaning, replacement of fuel filter
checking items judged
- fuel pipe's contact with hot part
- fuel pipe's contact with engine or machine
- caution label on fuel type and fire
- temperature of fuel system
must not beyond 53 °C or 127 °F
- certified fuel system for evaporative emission standards
- fuel tank capacity (less than 80L or 21.1gal (us))
- temperature of fuel in the fuel tank
(less than 53 °C or 127 °F)
- canister capacity if used (appropriate to the fuel tank)
- liquid gasoline flow to the canister
- fuel draining from carburetor
- length of LPG hose for vaporizer
(300 ± 20mm or 11.8 ± 0.78 inch)
- installation direction of vaporizer
- vacuum lock hose
5. Electric parts
- temp. (unexposed to elevated heat)
- fixing direction
- protection from rain, vibration
- key switch, prevented from rain, washing
- earth (two earth connections necessary for rubber
cushion mount)---Battery
Њ
Engine / Battery
Њ
Chassis
- preventive measures against improper wire
connection of ignition harness
- battery capacity
- battery check, cleaning, replacement
- battery cord has a structure not connected conversely
- battery cord not bundled other cords
- contact parts, covered by corrugate tube
- wiring clipping, suitable for vibration
- engine stop at shut down of electric circuit
(e.g. Battery dropped out)
- alternator L-terminal load > 5mA, when short circuit
protector is adopted.
- Do
NOT connect relay with alternator L-terminal when
short circuit is not adopted
note : judgment (evaluation) : O = good, OK, E = to be examined, X = No good, need modification.
confirmed
Customer : Distributor : KUBOTA :
11/jan/01
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