Engine Oil; Engine Oil Specifications - Yanmar 3JH4E Operation Manual

BEFORE YOU OPERATE
Bleeding the Fuel System - 4JH4-TE
and 4JH4-HTE
(4)
Figure 7
1 – Priming Pump
2 – Air Bleed Screw
3 – From Fuel Tank
4 – To Fuel Injection Pump
1. Check the fuel level in the fuel tank.
Refill if necessary.
2. Open the fuel cock of the fuel tank.
3. Loosen the air bleed screw
(Figure 7, (2)) 2 - 3 turns.
4. Push up and down on the priming pump
(Figure 7, (1)) to release air out of the
air bleed screw.
5. Continue pumping until a solid stream
of fuel with no air bubbles begins to
flow.
6. Tighten the air bleed screw.
NOTICE: NEVER use an engine starting aid
such as ether. Engine damage will result.
32
(1)
(2)
(3)
0004494

ENGINE OIL

Engine Oil Specifications

NOTICE: Using engine oil that does not
meet or exceed the following guidelines or
specifications may cause seizure of parts,
abnormal wear and shorten engine life.
Use an engine oil that meets or exceeds the
following guidelines and classifications:
• 3JH4E, 4JH4-TE and 4JH4-HTE: API
Service Categories CD or higher
• 4JH4AE: API Service Category CH-4
only
• SAE Viscosity: 10W30, 15W40. Engine
oil 10W30 and 15W40 can be used
throughout the year.
Note:
1. Be sure the engine oil, engine oil
storage containers, and engine oil filling
equipment are free of sediment or
water.
2. Change the engine oil after the first 50
hours of operation and then at every
250 hours thereafter.
3. Select the oil viscosity based on the
ambient temperature where the engine
is being operated. See the SAE Service
Grade Viscosity Chart (Figure 8).
4. Yanmar does not recommend the use
of engine oil "additives."
Handling Engine Oil
1. When handling and storing engine oil,
be careful not to allow dust and water to
contaminate the oil. Clean around the
filler port before filling.
2. Do not mix lube oils of different types or
brands. Mixing may cause the chemical
characteristics of the oil to change and
lubricating performance to decrease,
reducing the engines life.
3. Engine oil should be replaced at the
specified intervals, regardless if the
engine has been operated.
JH4 Series Operation Manual