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Service & maintenance, Warning – Echo 74500 Owners Manual v.4 User Manual

Page 17

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5" and 8" Skid Steer Chipper Owner's Manual

15

section

the items listed in the service and maintenance schedule are to be checked, and if necessary, corrective action taken.

this schedule is designed for units operating under normal conditions. if the unit is operating in adverse or severe usage

conditions it may be necessary for the items to be checked and serviced more frequently.
See engine owners manual for further maintenance and troubleshooting information.

service and mainTenance schedule

freQuencY

comPonenT

mainTenance

reQuired

before

each

use

everY

8 hrs

everY

25 hrs

everY

50 hrs

NutS & BOltS

CHeCk tOrQue

CHiPPer BladeS

CHeCk, SHarPeN

iF Needed

1

eNtire MaCHiNe

CleaN

rOtOr BeariNg

greaSe

1

it is a good sign that your chipper blades need sharpening when material stops self feeding.

5

service & maintenance

5.1 mainTenance schedule

the chipper blades will eventually become dull, making

chipping difficult and adding extra strain on the machine.

Poor chipping performance is usually a result of dull chipping

blades. it is recommended that the blades be sharpened

every 5 - 15 hours or if your chipper’s performance has

decreased. Check for the following symptoms and sharpen

the blades if needed.

Severe vibration when feeding material into the chipper.
Small diameter branches do not self-feed.
Chips discharge unevenly or have stringy tails, espe-

cially when chipping green branches.

1.
2.
3.

5.2 chiPPer blades

Chipping blades are sharp! use caution when working

on machine to avoid injury.

Warning

Before you sharpen the chipping blades, check for

permanent damage. replace the blade if:

there are cracks, broken corners or nicks greater than

1/8" (Figure 5.1).
the base of the cutting edge is worn or has been re-

sharpened so that the edge extends less than 1/16"

above the rotor chipping slot.

1.

2.

Figure 5.1 - Causes for Replacement

1/8"

1/4"

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