MAINTENANCE SERVICE PROCEDURE
4-51
CLEAN WATER SEPARATOR STRAINER 4
WARNING
q The engine is at high temperature immediately after the machine has been operated. Wait for the
engine to cool down before replacing the filter.
q Do not bring fire or sparks near the fuel.
1. Open the inspection cover (1) on the rear of the machine
2. Prepare a container to catch the drained fuel and set it
under the water separator.
3. Set handle (2) to position (A) to stop fuel from flowing in.
4. Loosen plug (3).
5. Loosen drain valve (4) at the bottom of the water separator,
and drain the water and fuel into the container.
After draining, tighten plug (3).
6. Loosen ring nut (5), then remove cup (6).
7. Remove strainer (7) from the separator base.
REMARK
Be careful not to lose the O-ring, float, or spring. Be sure to
assemble them after washing.
8. Wash the interior of cup (6), strainer (7), spring (8), and
float (9) with clean fuel.
9. Check strainer (7) and replace it if it is damaged.
10. Clean the separator base and wash strainer (7), then install the strainer to the separator base.
11. Coat the threaded portion of ring nut (5) thinly with grease.
12. Fit spring (8) and float (9) in cup (6), fill with clean fuel, install separator base, then tighten with ring nut (5).
The specified tightening torque of ring nut (4): 37 to 43 N·m (3.8 to 4.4 kgf·m, 27.5 to 31.8 lbft)
If the ring is loose, it will cause leakage of fuel, so always tighten it to the specified torque.
13. Set handle (2) to position (B).
14. After washing the water separator, bleed the air from the fuel circuit. For details of the procedure for bleeding
the air, see “REPLACE FUEL FILTER CARTRIDGE (4-55)“.
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