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WM45HCE PLASTER MORTAR MIXER • OPERATION AND PARTS MANUAL — REV. #0 (02/04/13) — PAGE 19
MAINTENANCE
Perform the engine maintenance procedures as indicated
below:
Daily
1. Thoroughly remove dirt and oil from the engine and
control area. Clean or replace the air cleaner elements
as necessary. Check and retighten all fasteners as
necessary.
Weekly
1. Remove the fuel filter cap and clean the inside of the
fuel tank.
2. Remove or clean the filter at the bottom of the tank.
3. Remove and clean the spark plug (Figure 17), then
adjust the spark gap to 0.028~0.031 inch
(0.6~0.7 mm). This unit has electronic ignition, which
requires no adjustments.
ENGINE OIL
1. Drain the engine oil when the oil is warm as shown
in Figure 18.
2. Remove the oil drain bolt and sealing washer and allow
the oil to drain into a suitable container.
3. Install drain bolt with sealing washer and tighten
securely.
4. Replace engine oil with recommended type oil as listed
in Table 4. Engine oil capacity is 1.16 quarts (1.1 liters).
DO NOT over fill.
Figure 17. Spark Plug Gap
MAINTENANCE (ENGINE)
Figure 18. Engine Oil (Draining)
ENGINE AIR CLEANER
1. Remove the air cleaner cover and foam filter element
as shown in Figure 19.
2. Tap the paper filter element (Figure 19) several
times on a hard surface to remove dirt, or
blow compressed air [not exceeding 30 psi (207 kPa,
2.1 kgf/cm
2
)] through the filter element from the air
cleaner case side. NEVER brush off dirt. Brushing
will force dirt into the fibers. Replace the paper filter
element if it is excessively dirty.
3. Clean foam element in warm, soapy water or
non-flammable solvent. Rinse and dry thoroughly. Dip
the element in clean engine oil and completely squeeze
out the excess oil from the element before installing.
Figure 19. Engine Air Cleaner
DANGER
DO NOT use gasoline as a cleaning
solvent, because that would create a risk
of fire or explosion.