Echo CH6720H Instruction v.1 - Manual

Instruction Sheet
Instruction
PN 76821-00
Rev. 102110
SUBJECT: KIT, ADJUSTABLE
FEED SPEED (PART # 76820-00)
FITS MODELS: CH6730H,
CH6720H
WHEN REMOVING THE EXISTING VALVES, BE
READY TO CATCH ANY HYDRAULIC FLUID THAT
MAY DRAIN OUT OF THE VALVE BLOCK.
NOTE
INSTALLING NEW VALVES
1. Remove the existing differential sensing valve from
the bottom of the valve block (see Figure 3.) and
replace with the differential seensing valve (part #
31486-00 (see Figure 1.)) from the kit.
2. Remove the existing -10 SAE plug from the side of
the valve block (see Figure 3.) and replace with the
needle valve (part # 31485-00 (see Figure 2.)) from
the kit.
3. Replace hydraulic fluid lost during service with an
equal amount of new, clean fluid.
KIT, ADJUSTABLE SPEED FEED, PART # 76820-00
ITEM PART # DESCRIPTION
1 31485-00 VALVE, NEEDLE -10 MOUNT
2 31486-00 VALVE, DIFFERENTIAL
SENSING
3 76821-00 INSTRUCTIONS, KIT
ADJUSTABLE FEED
Needle Valve, Part # 31485-00
Figure 1.
Figure 2.
This is an optional kit that will add the ability for the
operator to adjust the feed speed for the hydraulic feed
roller. This will change the rate at which the incoming
material encounters the chipping blades. This kit may be
used on all CH6730H models and may be added at any
time during a chippers service.
Before inspecting or servicing any part of this machine,
shut off power source, remove key, disconnect the
battery cables and make sure all moving parts have
come to a complete stop.
WARNING
Differential Sensing Valve, Part # 31486-00