| No. |
Check position |
Check item |
Check standard |
| 1 |
die-casting machine |
machine environment |
the machine is clean, and also clean the around of the machine |
| 2 |
security system |
security door |
no loose, run stably and reliably |
| air cylinder of security door |
air cylinder no leakage, piston rod no drags, and signal recption is good |
| 3 |
lubricantion system |
oil level of lubrication oil tank |
between the top and bottom limitation |
| lubrication effect |
add machine oil at every lubrication position, and without oil leakage |
| 4 |
hydraulic system |
total pressure |
work pressure is good, pressure shake doesn't influence normal work, oil pump without noise |
| oil level of hydraulic oil tank |
overwhelm oil gauge entirely |
| hydraulic oil temperature |
between 55℃- -10℃ |
| oil valve, oil pipe |
surface is clean, no loose, and no leakage |
| hydro-cylinder, piston rod |
oil tank is no leakage, piston rod is no drags, and good connection |
| 5 |
gas pressure system |
pressure gage of atomized lubricator |
5-6Bar setting requires 5-6Bar |
| ramming material air cylinder |
air cylinder is no leakage, piston rod is no drags |
| the gas of ramming material air cylinder |
no moisture |
| pressure gage of atomized lubricator |
oil quantity keep between top and bottom limitation |
| 6 |
mechanical system |
tie bar ( draglink) |
surface is clean, no drags, and no injury |
| template |
no injury, surface is clean |
| cross guide rod |
surface is clean, no abrasion and drags |
| anti-loose |
mode locking piston rod and cross hold-down nut is no loose, and steel pin set screw clamp spring is no loose |
| 7 |
electric system |
indicator light |
indicator light of power, lubrication, running is on when working |
| operation panel |
button is good and fixed solidly |
| wire |
be tied solidly and no damage |
| emergency stop switch |
can cut off the motor power when press it |
| stroke switch |
function of on-off is good, no greasy dirt, screw is no loose, pulley is no abrasion, probe is no breakage and no displacement |
| proximity switch |
surface is clean, no loose and no displacement |
| 8 |
hot work temperature |
smelter temperature |
adjust the temperature to 350℃ when start, and keep for 20mins, then adjust to working temperature |
| nozzle head |
lift the machine frame, and check if the nozzle head is leaking |
| 9 |
cooling system |
cooling pipeline |
no water seepage |
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periodic table of maintenance |
| serial no. |
maintenance position |
maintenance content |
maintenance standard |
maintenance period |
| 1 |
lubricantion system |
strainer, oil tank |
wash by diesel |
2 months/time |
| lubrication pipeline, lubrication parts |
lubrication pipeline is unimpeded, change damaged parts |
1 week/time |
| add engine oil into oil nozzle |
add engine oil |
1 day/time |
| 2 |
hydraulic system |
hydraulic oil |
sampling check |
half year/time |
| hydraulic oil |
change 1/3 hydraulic oil |
1 year/time |
| nitrogen pressure |
no leaking |
1 week/time |
| oil cylinder sealing element |
no oil leaking, no burn-in, and change the parts of burn-in (suggest to check and change before summer) |
1 year/time |
| strainer, oil tank |
wash by diesel oil and check if there is damage |
half year/time |
| oil pump |
oil can come out normally, no abnormal noise |
1 year/time |
| piston rod, piston head, cylinder bush, oil valve |
no galling, abrasion and fragmentation |
1 year/time |
| 3 |
mechanical system |
screw |
fastening |
3 months/time |
| crank |
steel bush, steel pin and crank is no abrasion (steel bush and steel pin should be changed every year) |
1 year/time |
| pulley wheel |
no scratch and displacement |
half month/time |
| mold adjustment device |
no abrasion and work normally |
half month/time |
| template copper bush |
no abrasion |
1 year/time |
| cross guide rod, copper bush |
no abrasion and galling |
1 year/time |
| parallelism of template |
|
half year/time |
| coaxiality, verticality |
|
1 year/time |
| security door |
can rotate and move easily |
half month/time |
| steel band |
no abrasion and galling |
half year/time |
| 4 |
electric system |
stroke switch |
change |
1 year/time |
| wire terminal |
check and fasten all the wire terminals |
3 months/time |
| electrical appliance box |
keep clean and no dust, no bare wire |
3 months/time |
| contactor, relay contact |
no scorch and oxidation |
3 months/time |
| relay, time relay |
change |
1 year/time |
| proximity switch |
fasten screw and clean the dust |
2 months/time |
| motor |
no shake and abnormal noise |
1 year/time |
| operation panel |
check all the buttons if there is loose or damage |
2 months/time |
| 5 |
hot work system |
thermocouple |
surface is no corrosion, if the temperature probe is good |
half month/time |
| |
molten cup pressing plate |
check if it is loose |
3 days/time |
| 6 |
cooling system |
pipeline |
if it is leaking |
1 month/time |
| |
cooler |
if it is blocking |
half year/time |
