Hose clamps, Strainer tube assembly, Warning – MTD 249-640A User Manual

Page 11: Ram operation, Maintenance

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NOTE

When the pressure relief valve opens
a loud high pitched sound is heard
and engine labors.

HOSE CLAMPS

Check the hose clamps on the bottom of the pump

for proper tightness before each use.

Hose clamps on the return hose should be checked

once a season.

FIGURE 24

NOTE

STRAINER TUBE ASSEMBLY

If the ram does not move back and forth smoothly

the strainer tube assembly may be clogged.

To clean follow these steps.

1. Remove the hose clamp at inlet hose (bottom

hose on rear of beam).

The ram should take approximately
30 seconds to make a complete cycle.
This speed may vary depending on
throttle setting and temperature of oil.

NOTE

Be prepaired to catch oil in some

container.

MAINTENANCE

WARNING

Always stop engine and disconnect

spark plug wire before doing any

maintenance.

RAM OPERATION

^y«'****‘‘^ the ram does not move smoothly, run the ram its

II stroke several times to clear out air

the system.

Be sure the breather valve is open.

If this does not correct the problem see strainer tube

assembly paragraph.

2. Pull off inlet hose from strainer tube assembly

and catch oil in a suitable container. See figure 25.

3. With an adjustable wrench remove the strainer

tube assembly. See figure 25.