TYM ET350 ECONO, Operator'S Manual

Page: 62 / 175

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4. Traction devices and steering system
Trouble and possible cause Possible remedy
A. Front wheel swing
(1) Excessive clearance of front wheel bearing or
kingpin sleeve worn out excessively
(2) Wrongly adjusted toe-in
(3) Ball pin and ball pin seat worn out excessively
(4) Pitman arm and ball pin fixing nut loose
B. Early worn out of front wheel tires
(1) Wrongly adjusted toe-in
(2) Front wheel pressure insufficient
C. Excessive steering wheel free travel
(1) Ball pin and ball pin seat won out excessively
(1) Adjust bearing clearance and replace
kingpin sleeve
(2) Readjust toe-in
(3) Replace ball pin and ball pin seat
(4) Check and tighten the nut
(1) Readjust toe-in
(2) Inflate tire to specified pressure
(1) Replace ball pin or ball pin seat
(2) Check and tighten the nut
5. Hydraulic system
Trouble and possible cause Possible remedy
A. Lack of lifting force or lifter will not lift
(1) Low oil level or improper type of oil
(2) Clogged oil inflow trainer
(3) Air in hydraulic system
(4) Oil pump seriously worn out, leaking serious
(5) Lower valve is open
(6) Main control valve or return valve worn out
seriously
(7) Ineffective safety valve
(8) Cylinder leaking seriously
(9) Leakage at distributor seal rings
B. Implement lifted with shake
(1) Lower valve is close
(2) Closed lowering speed regulating valve or shut-
Off valve
C.Implement lifted with shake
(1) Check valve worn out and closed incompletely
(2) Leakage at seal rings of the distributor and
Cylinder
(1) Add proper oil to specified level
(2) Flush the strainer
(3) Drain system and tighten contactor or
replace seal ring
(4) Replace oil pump seal ring
(5) Dismount and clean
(6) Replace worn out parts
(7) Readjust or repair safety valve
(8) Replace seal ring or replace worn out parts
if necessary
(9) Replace seal rings
(1) Dismount and clean
(2) Open the valve
(1) Repair or replace check valve
(2) Find out the position of leakage and
replace worn out seal rings