Kawasaki STX-15F Impeller Outside Diameter Measurement, Pump Inspection, Impeller Clearance

PUMP AND IMPELLER 11-15

Pump and Impeller

Impeller Outside Diameter Measurement

•Measure the impeller outside diameter.
If the impeller is worn smaller than the service limit, re-
place it.
Impeller Outside Diameter
Standard:	147.5 ∼ 147.7 mm (5.8071 ∼ 5.8149 in.)
Service Limit:	146.5 mm (5.7677 in.)

Pump Inspection

•Examine the pump case [A].

If there are deep scratches inside the pump case, replace it.

○Measure the inside diameter of the pump case.

If the pump case is worn beyond the service limit, replace it.

Pump Case Inside Diameter

Standard:	148.0 ∼ 148.1 mm (5.8268 ∼ 5.8307 in.)
Service Limit:	149.1 mm (5.8701 in.)

Impeller Clearance

•Impeller clearance is critical to proper performance. If the pump case and impeller are not visibly damaged, poor performance may be caused by too much impeller clear- ance.

•To check impeller clearance, remove the grate and insert a feeler gauge [A] between the tip of the impeller blade [B] and the pump case [C].

Impeller Clearance

Standard:	0.15 ∼ 0.3 mm (0.0059 ∼ 0.0118 in.)
Service Limit:	0.6 mm (0.0236 in.)

If impeller clearance is incorrect, determine if it is due to wear or damage (see Pump and Impeller Inspection).

Water Filter Cover Removal/Installation

•Loosen the clamps [A] and pull off the hoses [B].

•Remove the filter cover mounting bolts [C].

•Take out the filter cover [D].

•Replace the gasket with a new one.

•Installation is the reverse order of removal.

•Apply a non-permanent locking agent to the filter cover mounting bolts and torque them.

Torque - Filter Cover Mounting Bolts: 9.8 N·m (1.0 kgf·m, 87 in·lb)