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HPLA/HPHA-SERIES 46" WALK-BEHIND TROWEL — OPERATION AND PARTS MANUAL — REV. #6 (07/06/10) — PAGE 31
HPLA/HPHA-SERIES 46" TROWEL — MAINTENANCE (ENGINE)
Maintenance
Perform the engine maintenance procedures as indicated below:
DAILY
■
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. Check the
spring box and bellows for oil leaks. Repair or replace as
needed.
WEEKLY
■
Remove the fuel filter cap and clean the inside of the fuel
tank.
■
Remove or clean the filter at the bottom of the tank.
■
Remove and clean the spark plug (Figure 38), 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.
Figure 40. Engine Air Cleaner
DO NOT use gasoline as a cleaning solvent,
because that would create a risk of fire or
explosion.
DANGER :
ENGINE AIR CLEANER
1. Remove the air cleaner cover and foam filter element as
shown in Figure 40.
2. Tap the paper filter element (Figure 40) 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 nonflammable
solvent. Rinse and dry thoroughly. Dip the element in clean
engine oil and completely squeeze out the excess oil from the
element before installing.
ENGINE OIL
1. Drain the engine oil when the oil is
warm
as shown in
Figure 39.
2. Remove the oil drain bolt and sealing washer and allow
the oil to drain into a suitable container.
3. Replace engine oil with recommended type oil as listed
in Table 3. Engine oil capacity is 1.16 quarts (1.1 liters).
DO NOT overfill.
4. Install drain bolt with sealing washer and tighten se-
curely.
Figure 39. Engine Oil (Draining)
Figure 38. Spark Plug Gap