Cub Cadet I-Beam Style - Manual (Page 239)

6-33
6
Directing the flow to the rear of the cylinder
causes it to extend. The cylinder will extend
quickly until it meets resistance. When the
pressure required to overcome the resistance
exceeds the sequence setting, the cylinder will
slow down but keep moving forward. A relief
valve in the pressure line will bypass all pump
discharge if the pressure reaches a preset
maximum. This can happen at the end of the
extend or retract stroke, when the cylinder can
go no farther, or if the cylinder meets excessive
resistance during its stroke.
Directing the flow to the front of the cylinder
causes it to retract. Retracting is always at high
speed, since there is nothing to resist the cylin-
der. Again, the relief valve will bypass all flow
at the end of the return stroke. The flow control
valve should be self-centering, so that it auto-
matically bypasses the pump flow to the tank
rather than remaining at relief valve pressure.
This prevents overloading the pump, which
should not be subjected to relief valve pres-
sure for more than a few seconds.
All systems should have relief valves to protect
components from damage due to overpressur-
izing. Like the sequence valve, the relief valve
should be preset by the manufacturer, and
cannot be adjusted without gauges. Increasing
this setting is not recommended. If a log won’t
split at the factory setting, something else may
be wrong in the system. Increasing pressure
might still not split the log, and might damage
the pump.
The troubleshooting page (6-38) lists possible
log splitter problems. Each problem has a
number of possible causes, for which are listed
possible fixes and hints. Failure analysis is
very difficult, especially in the field where spe-
cial tools or pressure/vacuum gauges are not
available. If there is
any doubt about the cause
of a malfunction, it’s best to return the sus-
pected component to your shop for evaluation.
In case of the
pump , please note that valve
readjustment or pump disassembly VOIDS
ALL WARRANTIES.
Removing the Log Splitter from the Crate
NOTE
Parts are extremely heavy and should be han-
dled with mechanical equipment to prevent
injury. See Figure 6-20.
16. Remove all ten wood screws securing the top
of the crate to the sides of the crate using a
1/4" socket. See Figure 6-21.
17. Remove the top of the crate.
18. Pry the ends of the crate away from the sides.
19. Pivot all the sides down and remove them from
the base of the crate. See Figure 6-22. See
page 6-40.
Log Splitters 2.fm Page 33 Wednesday, February 20, 2002 1:35 PM