Sharpening chipper blades, Warning, Service & maintenance – Echo 74500 Owners Manual v.2 User Manual
Page 24: Important
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Page 18
Skid Steer Chipper Operator’s Manual
SHARPENING CHIPPER BLADES
The chipper blades will eventually become dull, making chip-
ping difficult and adding extra strain on the machine. It is
recommended that the chipper blades be sharpened
every 5-15 hours of chipper operation. To remove the
chipping blades for sharpening, follow the procedure below
WARNING
To prevent personal injury or property damage: Shut off
skid steer, disconnect hydraulics, remove ignition key,
and make sure that all moving parts have come to a com-
plete stop, before servicing, adjusting or repairing.
The chipping blades are sharp! Use care when working
on machine to avoid injury.
Service & Maintenance
Never sharpen or grind on the back side of the chipper
blade. This will cause the edge to roll and the chipping
blade will be damaged, causing poor chipping and feed-
ing of material. Small imperfections, nicks, burrs, etc. on
the flat side of the blade will not affect performance of the
machine.
NOTE
45°
MOUNTING
SURFACE
DO NOT GRIND
SHARPENED
SURFACE
SHARPENED
SURFACE
MOUNTING
SURFACE
DO NOT GRIND
CHIPPER
BLADE
Do not exceed the recommended torque values of 20
ft. lbs. (74500) or 75 ft. lbs. (74800) when tightening
the bolts for the chipper blades.
IMPORTANT
Removing the chipper blades:
1. Disconnect the hydraulic hoses from the skid steer.
2. Position the chipper chute to the side of the chipper.
3. Remove the two bolts on the chipper housing.
4. Tip the chute and housing away from the chipper to ex-
pose the rotor and the blades.
5. Use a pry bar between two of the fan blades to prevent
the chipper from rotating during chipper blade removal
and installation.
6. Remove the blades (Qty. 4) making sure not to slip the
wrench, the chipper blades are sharp.
7. The chipper blades are reversible. If the blades have not
been reversed flip the blades 180 degrees and reinsert.
8. If the chipper blades need to be sharpened refer to the
sharpening blades section of the manual.
9. Inspect all components of the chipper for damage and
replace if necessary.
Installing the blades:
1. Remove any accumulated material in the bottom of the
chipper drum.
2. Reinstall the chipper blades (Qty. 4) and tighten the bolts
to a torque of 20 ft. lbs. (74500) or 75 ft. lbs. (74800).
3. Check anvil clearance and adjust if necessary.
4. Close the chipper housing and reattach with removed
bolts to a torque of 25-28 ft.-lbs.
5. Reconnect machine hydraulics.
Tips:
Poor chipping performance is usually a result of dull chip-
ping blades. If your chipper's performance has decreased,
check for the following symptoms. If the machine shows
these symptoms, sharpen the blades.
1. Severe vibration when feeding material into the chipper.
2. Chips discharge unevenly or have stringy tails–especially
when chipping green branches.
Before you sharpen the chipping blades, check for perma-
nent damage. Replace the blade if:
1. The blade is cracked (especially around the bolt holes)
or the edges are too deeply chipped to be ground smooth.
2. The base of the cutting edge is worn or has been re-
sharpened so that it is too close to the rotor chipping
slot.
Sharpening the Blades:
1. When sharpening the blades grind the angled edge of the
chipping blade to 45 degrees. This is best accomplished
on a slow-speed wet grinder. If a bench grinder is used
be careful when grinding so that the blade material does
not get too hot and change color–this will remove the
blade's special heat treated properties.
2. Be sure to use short grinding times and cool with water
between grinding.
3. Try to remove an equal amount off each blade to maintain
balance.
Fig. #20, Sharpening Chipper Blades
- PAS ARTICULATING HEDGE CLIPPER ATTACHMENT PAS-2601
- 670-200
- PE-2000 Type 1/1E
- X7502026001
- SB
- 99944200610
- PAS RAPID LOADER 99944200610
- SRM-261SB
- SRM-210SB
- PAS-230
- PAS-230
- PAS-230
- PAS-260
- PAS-261
- 2410 - Type 2E
- GT-201
- POWER PRUNER PPT-2400
- HC-155
- HC-155
- Trimmer
- SRM - 265U
- HC-150
- HC-225
- HC-235
- BLADE CONVERSION KIT 231
- TC-2100
- SRM-400
- SRM - 260S
- 54
- HCA-2400
- CULTIVATOR PRO ATTACHMENT 99944200513
- RM-5000
- SRM-265T
- SHC-210
- 2110
- PE-3100 Type 1/1E
- SRM-265S
- SRM - 230U
- SRM-225I
- 99944200553
- 99944200553
- BRUSHCUTTER
- 99944200615
- PAS RAPID LOADER 99944200615
- 99944200485
- 99944200485
- SHAFT HEDGE CLIPPER HCA-265
- TRIMMER ATTACHMENT PAS-230
- TC-2100 Type 1
- HC-185
- HC-165
- SRM-210i
- SHC-260
- SRM-225SB
- SRM-211
- GT-251E
- SRM-280S
- HC-245
- HC-2410
- SRM-3800 TYPE1-E
- GT-2000
- SRM - 410U
- SRM - 410U
- GT-2000R
- GRASS/WEED TRIMMER BRUSHCUTTER and CLEARING SAW
- TC-210
- HC-1500 Type 1E
- SRM-265
- SRM230
- GT-2000EZR
- HCA-265
- SRM-260
- Power Blend TC-210
- CULTIVATOR TC-210I
- SHC-225 Serial S85312002871 - S85312999999
- GT-230
- GT-230
- SHC-265
- SRM-280T
- GT-200 R
- SRM-2305
- 99944200540
- 99944200540
- SRM - 230S
- SRM - 230S
- HC-150I
- SRM-2400SB EN
- PAS-2601 EN
- ES-2100
- CLS-5800
- PAS-225
- BRD-280 Serial S70711001001 - S70711002517
- BRD-280 Serial S70711002518 - S70711999999
- PB-760LN
- PB-755SH
- PB-265LN
- PB-255LN
- PB-250LN
- SRM-280U Serial S67511001001 - S67511006177
- SRM-280U Serial S67511006178 - S67511007612
- SRM-280U Serial S67511007613 - S67511999999
- SRM-266U
- SRM-225U Serial S79111001030 - S79111999999
- SRM-225U Serial S79111001001 - S79111001029
- SC3342
- 71110
- 70487
- 70252 v.1
- LS27
- CHF9540HXE
- CHF9540H Owners Manual v.6
- CHF9540H Owners Manual v.5
- CHF9540H Owners Manual v.4
- CHF9540H Owners Manual v.3
- CHF9540H Owners Manual v.2
- CHF9540H Owners Manual v.1
- CHF9540H Instruction v.4
- CHF9540H Instruction v.3
- CHF9540H Instruction v.2
- CHF9540H Instruction v.1
- CH9540H Owners Manual v.1
- CH9540H Instruction v.7
- CH9540H Instruction v.5
- CH9540H Instruction v.1
- CH922DH Owners Manual v.7
- CH922DH Owners Manual v.6
- CH922DH Owners Manual v.5
- CH922DH Owners Manual v.4
- CH922DH Owners Manual v.3
- CH922DH Owners Manual v.2
- CH922DH Owners Manual v.1
- CH922DH Instruction v.8
- CH922DH Instruction v.5
- CH922DH Instruction v.4
- CH922DH Instruction v.2
- CH8993H Owners Manual v.7
- CH8993H Owners Manual v.6
- CH8993H Owners Manual v.5
- CH8993H Owners Manual v.4
- CH8993H Owners Manual v.3
- CH8993H Owners Manual v.2
- CH8993H Owners Manual v.1
- CH8993H Instruction v.6
- CH8993H Instruction v.5
- CH8993H Instruction v.3
- CH8993H Instruction v.2
- CH8720iH Owners Manual v.2
- CH8720iH Owners Manual v.1
- CH8670HXE
- CH800H Owners Manual v.3
- CH800H Owners Manual v.2
- CH800H Owners Manual v.1
- CH6993H Owners Manual v.4
- CH6993H Owners Manual v.3
- CH6993H Owners Manual v.2
- CH6993H Owners Manual v.1
- CH6993H Instruction v.7
- CH6993H Instruction v.5
- CH6993H Instruction v.4
- CH6730HXE Instruction v.2
- CH6730H Instruction v.2
- CH6720H Instruction v.2
- CH6614H Owners Manual v.4
- CH6614H Owners Manual v.3
- CH6614H Owners Manual v.2
- CH6614H Owners Manual v.1
- CH611DH Owners Manual v.6
- CH611DH Owners Manual v.5
- CH5653 Owners Manual v.2
- CH5653 Owners Manual v.1
- CH5540H Owners Manual v.4
- CH5540H Owners Manual v.3
- CH5540H Owners Manual v.2
- CH5540H Owners Manual v.1
- CH5540H Instruction v.2
- CH5540 Owners Manual v.2
- CH5540 Owners Manual v.1
- CH4614 Owners Manual v.2
- CH4614 Owners Manual v.1
- CH45540 Owners Manual v.5
- CH45540 Owners Manual v.4
- CH45540 Owners Manual v.3
- CH45540 Owners Manual v.2
- CH45540 Owners Manual v.1
- CH45540 Instruction v.4
- CH45540 Instruction v.2
- CH450H Owners Manual v.2
- CH450H Owners Manual v.1
- CH4400 Owners Manual v.2
- CH4400 Owners Manual v.1
- CH4400 Instruction v.2
- CH123DH Owners Manual v.2
- CH123DH Owners Manual v.1
- CH123DH Instruction v.2
- CH123DH Instruction v.1
- 7812086 Owners Manual v.3
- 7812086 Owners Manual v.2
- 77454 Owners Manual v.5
- 77454 Owners Manual v.4
- 77454 Owners Manual v.3
- 77454 Owners Manual v.1
- 76835 Owners Manual v.1
- 76824 Owners Manual v.1
- 76635 Owners Manual v.3
- 76635 Owners Manual v.2
- 76635 Owners Manual v.1
- 76628S
- 74824 Owners Manual v.3
- 74824 Owners Manual v.2
- 74824 Owners Manual v.1
- 74800 Owners Manual v.4
- 74800 Owners Manual v.1
- 74628S Owners Manual v.2
- 74628S Owners Manual v.1
- 74628 Owners Manual v.2
- 74628 Owners Manual v.1
- 74628 Instruction v.2
- 74554 Owners Manual v.3
- 74554 Owners Manual v.2
- 74554 Owners Manual v.1
- 73454 Owners Manual v.3
- 73454 Owners Manual v.2
- 72942 Owners Manual v.4
- 72942 Owners Manual v.2
- 72928S
- 72928 Owners Manual v.6
- 72928 Owners Manual v.5
- 72825 Owners Manual v.4
- DSRM-200
- PE-280 Serial S63111001001 - S63111006135
- PE-280 Serial S63111006136 - S63111999999
- PE-266S
- PE-230 Serial 03001001 - 03999999
- PE-230 Serial 05011201 - 05999999
- PE-230 Serial 05001001 - 05011200
- PE-230 Serial 06001001 - 06999999
- PE-230 Serial S68311001001 - S68311999999
- PE-225 Serial S78611002140 - S78611999999
- PE-225 Serial S78611001001 - S78611002139
- HC-152
- SHC-225 Serial S85312001001 - S85312002870
- SHC-266
- HCA-266
- 99944200563
- 99944200620
- 99944200535
- 99944200595
- 99944200513
- 99944200470
- 99944200470
- 99944200600
- 99944200465
- PAS-225VPB
- PAS-225VP
- PAS-225VP
- PAS-225SB
- PAS-280
- PAS-266
- PPT-280 Serial E08011002238 - E08011999999
- PPT-280 Serial E08011001001 - E08011002237
- PPT-266
- ES-255
- ES-250
- TC-210 Serial 05001001 - 05999999
- TC-210 Serial E13912001001 - E13912999999
- MS-53BPE
- MS-41BP
- MS-21H
- SRM-280T Serial S66711001001 - S66711008029
- SRM-280T Serial S66711008030 - S66711011609
- SRM-280T Serial S66711011610 - S66711999999
- SRM-266T
- GT-225i
- GT-225i
- DL8390 Owners Manual v.4
- DL8390 Owners Manual v.3
- DL8390 Owners Manual v.2
- DL8390 Owners Manual v.1
- DL8390 Instruction v.2
- DL8390 Instruction v.1
- DL12725 Instruction v.2
- DL12720 Owners Manual v.2
- DL12720 Owners Manual v.1
- DL12720 Instruction v.3
- 75124
- 73725
- 73724
- LS33340T Owners Manual v.5
- LS33340T Owners Manual v.4
- LS33340T Owners Manual v.3
- LS33340T Owners Manual v.2
- LS33340T Owners Manual v.1
- LS33340T Instruction v.2
- LS33340T Instruction v.1
- LS33340 Instruction v.8
- LS33340 Instruction v.7
- LS27 Owners Manual v.2
- LS27 Owners Manual v.1
- LS27 Instruction v.11
- LS27 Instruction v.8
- LS27 Instruction v.5
- LS27 Instruction v.3
- SG340 Owners Manual v.4
- SG340 Instruction v.2
- SG340 Instruction v.1
- SG340 Instruction v.3
- 73711S Owners Manual
- WT24T Owners Manual
- WT24T Instruction v.2
- WT24T Instruction v.1
- WT24 Owners Manual
- WT24 Instruction v.2
- WT190T Owners Manual v.4
- WT190T Owners Manual v.3
- WT190T Owners Manual v.2
- WT190T Owners Manual v.1
- WT190T Instruction v.2
- WT190T Instruction v.1
- WT189 Owners Manual
- 76065 Owners Manual v.2
- 76065 Owners Manual v.1
- 74455S
- 74455 Owners Manual v.3
- 74455 Owners Manual v.2
- 74455 Owners Manual v.1
- PAS 80 Tooth Blade Brushcutter
- PAS Rapid Loader
- PAS Articulating Hedge Clipper Attachment 99944200590
- GT-225
- SRM-210
- SRM-225
- SRM-225