5-14
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
Is the lower
speed(Bucket or
arm) within
standard level?
Does the symptom
change when
relief valves in
LH and RH
travel motors are
exchanged?
Does travel speed
change when
parking brake
spring in the
slower travel
motor is removed?
Has control valve
spool changed
over positively?
Do LH and RH
travel speeds
change over when
travel relief valves
are exchanged?
Does spool move
lightly when it is
cut off from
control spool?
Brake valve is
defective.
Relief valve built
in travel motor is
faulty.
ͽ
Control system is
faulty .
Control valve
spool is stuck.
Travel relief valve
is faulty.
Hydraulic pump is
broken.
Travel motor's
parking brake is
not released
properly.
Travel motor is
faulty.
Disassemble
and repair or
replace.
Disassemble
and repair.
Disassemble,
inspect and
repair.
Disassemble
and repair.
Disassemble
and repair or
replace.
Disassemble
and repair.
Disassemble
and clean pilot
piping.
Disassemble
and repair.
ͽ
S
SPEED ON ONE SIDE FALLS AND THE MACHINE CURVES
2)
Is leak rate of
travel motor within
standard level?
Cause
Remedy
YES
YES
NO
Do LH and RH
travel speeds
change when LH
and RH travel
brake valves are
exchanged?
Содержание R35Z-7
Страница 11: ...SECTION 1 GENERAL Group 1 Safety Hints 1 1 Group 2 Specifications 1 9...
Страница 143: ...4 10 MEMORANDUM...
Страница 179: ...4 45 No of pin Receptacle connector Female Plug connector Male 14 1 7 6 14 MG610406 KET SDL CONNECTOR 13...
Страница 337: ...7 77 Take out ball bearing 3 from shaft 2 Tools required Ball bearing disassembly jig S 8 Completed 31 32 2 3 R35Z77TM32...
Страница 357: ...7 97 Remove lock nut 24 and then boot 27 16 RE18 140 7 RE19 140 7 25038RL02 4...
Страница 368: ...7 108 3 13 12 Install cover 3 to hub and tighten bolts 12 5 R35Z77TJ04...