AAQ SXJS4019A, Installation Manual & Operation Instructions

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5.2 Common failure and troubleshooting
No Failure Troubleshooting method
1 Motor not work;
Check whether there is power;
Check whether the wiring in the
terminal box of the motor is loose;
2 Motor is not forceful; Phase-failure of the motor;
3
Motor rotates but there
is no pressure;
Reverse the motor and check
three-phase four-wire power;
Check whether there is sufficient oil in
oil tank, oil inlet falls off or not, and
filter screen is blocked or not;
4
Automatically drop
down after lifting;
Clean the one-way valve, reversal valve
and pressure relief valve of pumping
station;
5 Safety lock fails to lock;
Check whether the position of the
safety lock plate is normal or not;
Observe whether the upright post
position is normal;
Check whether the reset spring of the
safety lock plate works or not;
6
Motor and electrical
apparatus don’t work;
Timely cut off power, professional
electrician should check, maintain and
replace them;
7 Others;
For any other failure, please timely
consult through phone call;
5.3 List of wearing parts
No Name Quantity Remark
1 Self-lubricating
bearing 10
2 Small pulley 4