Reserve Engine Oil System (If Equipped); Reserve Oil Tank Filling Procedure (Remote Fill) - Komatsu 730E Operation & Maintenance Manual

OM4064 06/11
Lubrication and Service
RESERVE ENGINE OIL SYSTEM (IF
EQUIPPED)
The reserve oil tank for the engine is designed to add
more oil capacity to the engine to reduce the frequent
servicing of the engine oil. The engine oil level must
still be checked every shift using the dipstick. If engine
oil level is not correct, check for proper operation of the
reserve oil system. Never add oil to the engine unless it
has been drained.
If the engine oil has been drained from the oil pan, the
new oil must be added to the engine oil pan before
starting. DO NOT use the oil in the reserve tank to fill
an empty engine with oil. After an oil change, both the
engine and reserve tank must be full of oil before start-
ing the engine.
With the engine running, check the operation of the red
LED light on the pump.
• Continuously on - Pump 1 is withdrawing oil from
the engine sump and bringing down the oil level.
• Regular pulsing - Pump 2 is returning oil to the
engine sump and raising the oil level.
• Irregular pulsing - Oil is at the correct running
level.
FIGURE 40-3. CONTROL PANEL
1. Remote Control Box
2. Power Switch
3. Start Switch
4. FULL Light
5. VALVE OPEN Light
Oil should always be visible in the bottom sight gauge.
If not, add oil to the reserve oil tank until oil is visible in
the top sight gauge.
• Never add oil to the engine unless it has been
completely drained.
• If the engine oil has been drained from the oil pan,
new oil must be added to the oil pan. Do not use
the oil in the reserve oil tank to fill an empty
engine oil pan.
After an oil change, both the engine and reserve oil
tank must be full of oil before starting the engine.

Reserve Oil Tank Filling Procedure (Remote fill)

1. Connect the pressure supply hose from the new
oil supply to the quick coupler on the truck. Open
valve on supply hose to apply pressure.
2. Pull out on switch (2, Figure 40-3) to turn the sys-
tem on.
3. Push start switch (3). The VALVE OPEN light (5)
should illuminate and the filling process will begin.
4. When tank is full, the VALVE OPEN light will turn
off and FULL light (4) will illuminate.
5. Close the oil supply valve in the fill hose.
6. Press and hold start switch (3) for a couple of sec-
onds.
7. Disconnect the new oil supply hose.
8. Push switch (2) in to turn system power OFF.
NOTE: Maximum recomended fill pressure for the
reserve oil system is 862 kPa (125 psi)
Inline Screen
There is an inline screen located at the inlet of the fill
valve. This screen does not require periodic mainte-
nance, but it can be cleaned by removing the screen
and back flushing.
Maintenance - Section 40
Page 40-3