MULTIQUIP LS450 Operation Manual page 43

Changing Engine Oil and Filter
Change the engine oil and filter after the first 50 hours of
use, then every 6 months or 250 hours. Refer to Table 6
for recommended oil viscosity.
NOTICE
ALWAYS drain the engine oil while the oil is warm.
1. Prepare a waste oil container to drain the oil into.
2. Remove the oil filler cap while draining the engine to
allow the oil to drain easily.
3. Remove either the side or front oil drain bolt (Figure 45)
to drain the oil into the container.
SIDE
OIL DRAIN BOLT
Figure 45. Oil Drain Bolts
4. After the oil is sufficiently drained, reinstall and securely
tighten the oil drain bolt.
5. Using a filter wrench, turn the oil filter (Figure 46)
counterclockwise to remove.
OIL FILTER
Figure 46. Oil Filter Removal
MAYCO LS450 CONCRETE PUMP • OPERATION MANUAL — REV. #2 (02/23/21) — PAGE 43
FRONT
FILTER
WRENCH
6. Clean the sealing surface (Figure 47) on the engine
where the oil filter mounts.
SEALING
SURFACE
GASKET
Figure 47. New Oil Filter Installation
7. Lightly coat the gasket of the new oil filter with clean
engine oil. Install the new filter first by hand until it
contacts the engine sealing surface. Then tighten the
filter another 3/4 turn using the filter wrench.
8. Fill the engine crankcase with high-quality detergent oil
classified 'For Service CF, or CF-4.' Fill to the upper limit
of the dipstick. DO NOT overfill. Crankcase oil capacity
with oil filter replacement is approx. 1.85 gallons
(7.0 liters).
9. Run the engine briefly 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.
RADIATOR/COOLING SYSTEM
Coolant (Antifreeze/Summer Coolant/Water)
Hatz recommends antifreeze/summer coolant for use in
their engines, which can be purchased in concentrate (and
mixed with 50% demineralized water) or pre-diluted. See
the Hatz engine owner's manual for further details.
WARNING
When adding coolant/antifreeze mix to the
radiator, DO NOT remove the radiator cap
until the unit has completely cooled. The
possibility of hot! coolant exists which can
cause severe burns.
Day-to-day addition of coolant is done via the radiator.
When adding coolant to the radiator, DO NOT remove the
radiator cap until the unit has completely cooled. Coolant
capacity is approx. 3.4 gallons (13 liters).
MAINTENANCE