Doosan GV158TIC, Operation & Maintenance Manual

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Disassembly and Reassembly of Major Components - 94 -
b) Watch the oil pressure warning lamp. If the lamp blinks, it may be the oil pick-up screen is not cov-
ered with oil. Check oil dipstick. Add oil to the oil pan, if required. Do not overfill. If level is correct and
the status still exists, see your DEALER for possible switch or oil pump and line malfunction.
Note:
Oil pressure will rise as RPM increases, and fall as RPM decreases. In addition, cold oil will
generally show higher oil pressure for any specific RPM than hot oil. Both of these conditions
reflect normal engine operation.
c) Watch the engine water temperature gauge and be sure there is proper water circulation. The water
temperature gauge needle will fluctuate if water level in expansion tank is too low. At the end of the
breaker) period, remove break-in oil and replace the oil filter. Fill oil pan with recommended engine
oil. Refer to following table.
Engine model
Engine oil capacity Recommend oil
In oil pan
Total (lit) API No.
Sulfated ash
content
Max. (lit) Min. (lit)
GV158TIC 28 26 31
SAE 15W40 Bellow 0.5% GV180TIC 35 28 38
GV222TIC 40 33 43