Reserve Oil Tank Service - Komatsu 930E-4SE Operation & Maintenance Manual

OM4056 7/11

RESERVE OIL TANK SERVICE

The reserve engine oil system 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 by using the dipstick. If
the engine oil level is not correct, check for proper
operation of the reserve engine oil system. Never
add oil to the engine unless it has been drained.
If the engine oil has been drained from the oil pan,
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
starting 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. REMOTE FILL CONTROL BOX
1. Remote Control Box
2. Power Switch
3. Start Switch
4. FULL Light
5. VALVE OPEN Light
Lubrication and Service - Section 40
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.
Filling the Reserve Oil Tank (Remote Fill)
1. Connect the supply hose from the new oil
supply to the quick disconnect coupling on the
truck. Open the valve on the supply hose to
apply pressure.
2. Pull power switch (2, Figure 40-3) to turn the
system ON.
3. Push start switch (3). VALVE OPEN light (5)
should illuminate and the filling process will
begin.
4. When tank is full, VALVE OPEN light (5) will
turn off and FULL light (4) will illuminate.
5. Close the valve in the supply hose.
6. Press and hold start switch (3) for a couple of
seconds.
7. Disconnect the supply hose from the quick
disconnect coupling on the truck.
8. Push power switch (2) to turn the system OFF.
Inline Screen
There is an inline screen located at the inlet of the fill
valve. This screen does not require periodic
maintenance, but it can be cleaned by removing the
screen and back flushing.
Page 40-3