Bolens 248-645A - Manual (Page 13)

3. With an adjustable wrench remove the strainer
tube assembly. See figure 27.
NOTE
The strainer tube assembly is 53" long.
4. Clean and reassemble using a hydraulic pipe
sealant on the threads.
PRESSURE RELIEF VALVE SETTING
If the pressure relief valve is set too low it will open up
before enough pressure is built up to properly operate
the ram. See figure 28.
TO SET THE PRESSURE RELIEF VALVE
1. Remove the acorn nut on the Relief Valve.
2. Loosen the locknut.
3. Have someone place a log crossways in the Splitter
and allow the Ram to push against it with the
engine running wide open.
4. If the engine begins to lug down, the Relief Valve
setting is correct.
"“S. If adjustment is necessary, tighten the screw until
the engine begins to lug down.
6. Shut off the engine, tighten the locknut and
replace the acorn nut.
PRESSURE RELIEF VALVE
LOCKNUT
SCREW
FIGURE 28
ENGINE MAINTENANCE
AIR FILTER
Under normal operating conditions, the air cleaner,
located on top of the carburetor, must be serviced
after every ten hours of use. Under extremely dusty
operating conditions, the air cleaner must be serviced
after every hour of operation.
1. Remove the wing nut and cover.
2. Remove the second wing nut and metal disc
holding the foam and paper element.
3. Remove the two elements from the support base.
4. To clean, tap the paper element (either top or
bottom) oh a flat surface.
13
5. To clean foam element, wash in detergent and
solution by squeezing similar to a sponge. Wrap
foam in cloth and squeeze dry. Coat element with
two tablespoons of engine oil. Squeeze to
distribute and remove excess oil.