Worx Generic QJ125-26A, Инструкция по эксплуатации и техническому обслуживанию, Страница: 28 / 166

No Yes
Symptom: Difficult gearshift on transmission Diagnosis procedures
Symptom: Drum-type brake fails Diagnosis procedures
Yes
Yes
Yes
Yes
No
No
No
No
Difficult gearshift on transmission
Start engine and check if idle is too high.
Re-adjust Check if the operation is harmonious at gearshift.
Check if clutch is completely separated. Improve operation method.
Check if gearshift box is distorted and shift lever is deformed or over worn.
1.
Check if clearance of clutch handle bar is
within 10mm~20mm; 2. Check if elasticity of
clutch spring is even; 3. Check if splines on
clutch active and drive hubs are worn into
zigzag form; 4. Check if clutch driven plate is
warping and distorted; 5. Check if
components of clutch control mechanism are
excessively worn.
Replace 1. Check if groove of gearshift camshaft is
over worn or injured; 2. Check if shift fork
hole is excessively worn; 3. Check if shift
fork is deformed; 4. Check if fork shaft is
distorted or over worn.
Drum-type brake fails.
Check if clearance of brake handle bar is within 10mm~20mm
or clearance of brake pedal within 20mm ~ 30mm range.
Re-adjust
Separate cable of brake rocker arm from brake control cable. Move rocker arm by hands.
Brake rocker arm rotates
freely but there is resistance
feeling from brake handle.
Rocker
arm turns
inflexibly
Arrow on the indicating board
of cam aims at or exceeds“
▽
”
mark on hub cap.
Arrow on the indicating board of cam does
not align to the“
▽
” mark on hub cap.
Brake control cable
does not pull flexibly in
the jacket.
1. Check if crown face of brake cam
is over worn; 2. Check if brake shoe
friction disc is over worn; 3. Check if
bore of brake hub is excessively
worn.
Movable parts of
brake cam rusts or
is stuck by foreign
substances.
1.Check if there is oil adhered to the
surface of brake shoe friction disc;
2.Check if contact area between
braking shoe and friction disc is
less than
70
％