Carlton 1712 Manual do Operador descarregar pdf (Página 83)

12” CHIPPER TROUBLESHOOTING GUIDE

57

COMPLAINT CAUSE CORRECTION

Chipper bearings are

overheating

• Bearings are dry

• Check the chipper bearing

retainer cap for tightness

• Bearings worn out

• Setscrews on sheave side

bearing not tight

• Grease bearings daily using

Texaco

® Starplex II grease

• Retighten bolts or setscrews

as tight as possible

• Replace

• Tighten

Feeding material causes feed

wheels to slow down or stop

• Dull knives

• Relief valve is worn or dirty

• Pump has excessive wear

• Feed wheel motor(s) not

working properly

• Feed wheel springs to tight

• Replace knives (see

Servicing Cutter System

section)

• Clean or replace; reset

pressure

• Replace

• Check & replace

• Adjust

One or both feed wheels don’t

turn or turn too slow to feed

material

• Feed wheel motor(s) not

working properly

• Relief valve opens too easily

or stuck open

• Feed wheel valve (control

valve) worn & leaking

internally

• Feed wheel relief pressure

off

• One or more hoses may be

crimped or leaking

• Hydraulic oil level low

• Pump has excessive wear

• Feed wheels binding

• Control lever improperly

shifting valve

• Worn or dirty flow divider

• Reverse hoses at flow

divider - if same motor still

doesn't turn, motor is

probably bad; if other motor

is now the one not turning,

the flow divider is probably

bad. Repair or replace

• Valve needs to be cleaned or

replaced; reset pressure

• Check & Replace

• Reset pressure to 2500 PSI

• Replace (see Servicing

Hydraulics section)

• Keep oil level about 7/8 full

• Replace pump

• Check bearings, lubricate

properly

• Readjust; valve must open

completely

• Clean or replace

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