MULTIQUIP DLW400ESA4 Operation Manuals page 45

ENGINE OIL FILTER REPLACEMENT
1. Clean the area around the lubricating oil filter head.
2. Using an oil filter wrench (Figure 55), remove engine
oil filter.
OIL FILTER
WRENCH
Figure 55. Engine Oil Filter Removal
3. Coat the rubber seal (gasket) surface of oil
filter (Figure 55) with clean 15W-40 engine oil.
4. Install new oil filter first by hand until it makes contact
with the filter head surface. Tighten it another 3/4 turn
using the filter wrench.
5. Fill engine crankcase with high quality detergent oil
as referenced in Table 25. Fill to the upper limit of
dipstick. DO NOT overfill. Reference Table 4 for engine
crankcase oil capacity.
6. Run the engine for several minutes. Watch for oil
leakage. Shut the engine down and allow it to sit for
several minutes. Top off the oil to the upper limit on
the dipstick.
DLW400ESA4 WELDER/GENERATOR • OPERATION MANUAL — REV. # 0 (03/14/18) — PAGE 45
RUBBER
SEAL
OIL
COAT SEAL
WITH THIN
LAYER OF OIL
ENGINE
OIL FILTER
CARTRIDGE
DRAINING ENGINE COOLANT
WARNING
DO NOT remove the pressure cap from the radiator
when the engine is hot! Wait until the coolant
temperature is below 120°F (50°C) before removing
pressure cap.
Heated coolant spray or steam can cause severe
scalding and personal injury.
1. Remove the radiator pressure cap (Figure 56) only if
the coolant tempeature is below 120°F (50°C).
CORRECT
180
140
220
°F
100
260
WATER TEMP
PRESSURE
CAP
Figure 56. Radiator Pressure Cap Removal
2. Remove the coolant drain bolt and o-ring (Figure 57),
then allow the coolant to drain into a suitable container.
T
N
L A
I N
O
A
O
R
C
D
Figure 57. Draining Radiator Coolant
3. Check hoses for softening and kinks. Check clamps
for signs of leakage.
4. Remove and inspect radiator cap.
MAINTENANCE
180
140
220
°F
100 260
WATER TEMP
COOLANT DRAIN BOLT
AND O-RING