中文
EN
DE RU KO PT
JA
ES
97813A
16
Chapter V Common faults and troubleshooting
Fault
symptoms
Unable to
jack under
rated load
√
√
√
√
The tray
drops
automatically
under load
√
√
The tray
always fails
to lift
√
√
The handle
is soft and
powerless
when
pressed
√
√
The handle
raises
automatically
under load
√
Oil leaks from
the oil filler
√
Possible
causes
1. Inspect if the
oil return valve
is completely
closed
2. Air may
exist in the oil
circuit
1. Oil circuit may be blocked.
2. The oil return valve may
not be completely closed
The
hydraulic
oil may be
insufficient
Air may
exist in
the oil
circuit
The
hydraulic
oil may be
excessive
Summary of Contents for 97813A
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