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When performing maintenance on the spray cart or engine,
follow all Safety Messages and Rules for Safe Operation
appearing at the beginning of this manual.
ENGINE MAINTENANCE
Spark Plug
1. Remove and clean the spark plug (Figure 48) with a
wire brush.
GAP:
0.028 – 0.031 in.
(0.7 – 0.8 mm)
Figure 48. Spark Plug
2. Measure the spark plug gap (Figure 48) with a
feeler gauge. The spark plug gap should measure
0.028–0.031 inch (0.7–0.8 mm). Adjust the spark plug
gap as needed by bending the side electrode.
WSC55 SERIES CHEMICAL SPRAY CART • OPERATION AND PARTS MANUAL — REV. #1 (08/30/19) — PAGE 39
MAINTENANCE (ENGINE)
Engine Oil
NOTICE
ALWAYS drain the engine oil while the oil is warm.
Refer to Figure 49.
DRAIN
HOLE
Figure 49. Engine Oil Replacement
1. Remove the oil filler cap/dipstick and set aside.
2. Remove the oil drain bolt and sealing washer. Allow the
oil to drain into a suitable container through the drain
hole in the spray cart frame.
3. Reinstall the oil drain bolt and sealing washer, and
tighten securely.
4. Add engine oil as recommended in Table 6. For engine
oil capacity, see Table 2. DO NOT overfill.
5. Reinstall the oil filler cap/dipstick.
OIL FILLER CAP/
DIPSTICK
SEALING
WASHER
DRAIN
BOLT
CONTAINER
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