Ferplast HY1001, Instruction Manual

9

8.TROUBLE SHOOTING 

Note: Before service it is necessary to screw two eyebolts into relevant 
screw-holes on the basis lest the table lowers accidentally 

Trouble Cause 

Remedy 

Table cannot 
lift while 
motor works 
normally 

◇ 

Eyebolt has not been 

removed 

◇ 

AC voltage phrases 

mistake  

◇ 

Electromagnetic 

dysfunctions 

◇ 

The table is overloaded 

◇ 

Remove eyebolt 

◇ 

Correct AC voltage phrase 

◇ 

Check the function of 

electromagnetic valve and repair 
it 

◇ 

Remove excessive load 

Table cannot 
lift and motor 
does not 
work 

◇ 

Lowering limit switch (if 

existed) damaged 

◇ 

Replace limit switch 

Table cannot 
lower 

◇ 

Lowering limit switch or 

micro-switch on safety guard 
damaged 

◇ 

Electromagnetic valve 

dysfunctions 

◇ 

Safety guard works 

◇ 

Something wrong with 

electric circuit board 

◇ 

Replace lowering limit 

switch or micro-switch. 

◇ 

Check the function of 

electromagnetic valve and repair 
it 

◇ 

Strike the UP button 

slightly

◇ 

Replace electric circuit 

board 

Table’s legs 
go over limit 
position (if 
existed) 
while table 
lowers 

◇ 

Internal leaking in 

electromagnetic valve 

◇ 

Packing damaged in 

hydraulic cylinder 

◇ 

Repair electromagnetic 

valve and if necessary replace it 

◇ 

Check and replace packing 

Table cannot 
reach the 
highest 
position 

◇ 

Oil not enough 

◇ 

Limit switch damaged 

◇ 

Fill enough oil 

◇ 

Check and repair limit 

switch. If necessary, replace it