Feed Control Adjustment - Danzco DH0070 14G Operation And Parts Manual

Connect and cut hydraulic chain saw
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Pry between the Bushing and the Sprocket to get the Bushing off the shaft. Watch that the Drive Key (Fig 7, item
4) does not get lost.
To install the Sprocket, slide the Sprocket (Fig 7, item 1) over the motor shaft, slide the Bushing (Fig 7, item 2)
onto the shaft with the Drive Key (Fig 7, item 4) aligned. Position the sprocket groove offset towards the motor
about the width of the bar groove with the Bushing just contacting the Sprocket. Insert the Cap Screws (Fig 7,
item 3) through the large hole in the Bushing and screw them into the threaded holes of the Sprocket. Torque the
Cap Screws (Fig 7, item 3) to 36 inch pounds. Check to make sure the sprocket groove is aligned with the bar
groove. If the alignment is not correct, remove and replace the sprocket and bushing by adjusting the position
before tightening the cap screws.
Feed Control Adjustments
6B
Connect and Cut saw systems have a control manifold with cartridge valves to limit flow to the saw motor and
feed cylinder and a feed modulating valve to adjust the feed speed based on the saw motor pressure. We have
tested the operation of your system to set the valves before shipping so your system should cut any diameter,
species, or hardness of wood without stalling the chain in the cut. The feed modulating valve will make the bar
pulsate in the cut on larger or harder wood as it is trying to cut as fast as possible. It may be possible to fine tune
the cutting for your application by adjusting the saw feed speed adjustment valve (Fig.8, item 12). For larger or
harder wood loosen the jam nut with a 9/16" wrench and screw the adjustment screw out with a 5/32" hex key
wrench (Allen wrench), this will slow the bar movement down, lock the jam nut down when done adjusting. For
smaller softer wood you may want to speed up the bar movement by screwing the adjustment screw in. Having
the bar move too fast may cause the chain to stick when starting into the cut if the chain hits a knot. It is possible
to tune the feed modulating valve (Fig. 8, item 2) by loosening the jam nut with a 9/16" wrench and adjusting the
screw with a 3/16 hex key. A smoother cut may be possible by screwing the adjustment screw out but this may
increase the cutting time in larger or harder wood. If the wood is dry and hard, screwing the feed modulating
adjustment in may decrease cutting time. Screwing the feed modulating adjustment in too far will cause the chain
to stall. Be sure to lock the jam nut after adjusting a valve.
Fig. 8
7

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