Echo 7812086 Instruction v.2 - Manual

Instruction Sheet
Instructions
SUBJECT: 12" ChIpper Blade
replaCement KItS (pn 73900-00
and 76297-00)
MODELS: all 12" ChIpperS
pn 73901-00
rev. 033009
WARNING
the chipping blades are sharp! Use care when working
on the machine to avoid injury.
WARNING
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.
BLADE ACCESS
COVER BOLTS
BLADE ACCESS
COVER LOCK PIN
turn off the engine and allow all moving parts to come 1.
to a complete stop.
rotate the discharge chute toward the left side of the
2.
machine.
remove the two 1/2" x 1-1/4" bolts, nuts and washers
3.
securing the blade access cover to the chipper housing
(see below).
lift the engine hood and locate the Blade access Cover
4.
Jack inside the chipper housing next to the hydraulic
fluid reservoir (see below).
turn the wing nut located on the bottom of the jack to
5.
the right and pump the handle.
Secure the cover using the Blade access Cover lock
6.
pin located on the outside of the chipper housing (see
below).
rotate the disk until a chipper blade is accessible.
7.
Secure the disk to prevent movement while removing 8.
the chipping blades.
When closing the rotor cover, make sure the bolts are
securely tightened. If they are not, the safety switch
may respond as though the battery is dead.
NOTE
remove the hardware holding the blade to the disk. 9.
remove and discard blade.
Bolt on the new blade using the new hardware. torque
10.
to 230 ft-lbs (312 nm). repeat for remaining blades.
Check how the blades clear the anvil. all blades
11.
should clear the anvil by 3/16" - 3/8". adjust the anvil
if necessary (see your owner's manual).
to lower the cover, remove the Blade access Cover
12.
lock pin and turn the wing nut to the left to release
the hydraulic pressure.
Secure the blade access cover to the chipper housing
13.
using two 1/2" x 1-14" bolts, nuts and washers.