Section IV. REMOVAL AND INSTALLATION OF MAJOR COMPONENTS

5-9. Pump Vibrates or Develops Excessive Noise

5-8. Pump Fails to Discharge, Capacity Decreases

or Pressure Drops

Probable Cause

Possible remedy

Impeller damaged or

Replace impeller (fig. 6-7

Probable Cause

Possible remedy

broken

Impeller damaged d or

Replace impeller (fig 6-7)

Defective impeller shaft

Replace bearing (fig 6-7

broke"

bearing

Seal assembly defective................ Replace seal assembly

(fig 6-7)

Housing cracked or de-

Replace housing (fig. 6-3).

fective

Section III. RADIO INTERFERENCE SUPPRESSION

5-10 General

and components will be found in Chapter 3, Section VI,

of this manual.

Information on radio interference suppression methods

Section IV. REMOVAL AND INSTALLATION OF MAJOR COMPONENTS

5-12. Housing Assembly Remove and l install as

5-11. General

directed in paragraph 3-65

The gasoline engine and the centrifugal pomp are

Remove and install as directed in paragraph 3-65.

mounted d on a welded-steel skid. The front of the

engine is supported by a trunnion bracket which is

5-13. Engine a Remove the engine as follows:

bolted to an engine support mounted on the skid. The

rear of the engine is supported d by flywheel housing b

a. Remove the engine as follows:

bolted directly to the skid. The pump is secured to the

(1) Remove battery box (para b 511.

skid at the four corners of the pump bottom ease. The

(2) Remove muffler (fig 2-2).

engine is e connected to the pump by a flexible steel

(3) Disconnect gages and instruments fig. 3

grid that joins the engine coupling half to the pump

6).

coupling half. The engine and pump have b en aligned

(4) Remove housing assembly (para b 65)

at the factory and no further alignment is necessary

(5) Drain the radiator (para a-A i)

unless the engine or the pump is replaced.

(6) Disconnect radiator hoses (fig 7-7).

Figure 5-1. Engine, removal and installation.

5-2