Instructions for use Epec 4W30 35
(C) Epec Oy Seinäjoki Finland
7.32 Back Knife Delay (K40)
− When the butt end reverse is carried out, the back knife opens and
the feeding of the tree to the desired length starts. The back knife
delay is used to set the time that the back knife stays open before
closing.
− Setting range 0 – 2 s.
7.33 Urea Feeding Time (K41)
− Setting the length of the pulse which opens the grapple’s urea valve.
− The setting range is 0 – 1 s.
7.34 Urea Delay (K42)
− Setting the number of pulses coming from the saw position indicator
before the opening pulse is controlled to the urea valve.
− Setting is used to accurate the urea feed starting position.
− The setting range is 0 – 50.
7.35 Reverse Pumps (K44)
− The setting of how many pumps are used in reversing. It is possible
to use one or two pumps in reversing. The reversing is faster and
more efficient when two pumps are in use.
− If two pumps are in use, the second pump goes on after the valve
”Feed backward 2” is controlled to open.
− The setting range is 1 – 2.
7.36 Back Knife Type (K45)
− The setting is used to inform the measuring equipment the type of the
grapple's back knife.
− The different type values for the back knife:
0 = grapple without the back knife
1 = grapple with four knives, without the lock valves
2 = grapple with four knives, with the lock valves
3 = grapple with the one-sided back knife
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