Hyundai 12ESH Operation Manual page 24

9.7 Maintenance for every 600 hours (three months)
When conducting maintenance of every three months, repeat the monthly process. If it's necessary to adjust or replace
spare parts, please contact repair personnel of our company.
Polish uneven contacts with abrasive paper
Contactor
Replace when it fails to function well
Motor Wearing condition of carbon brush and commutator.
Brake Clean dirt and dust on friction plate, and check the wearing condition
9.8 Maintenance after 1200 hours (half a year)
When conducting maintenance for every half a year, please repeat the process of maintenance for every three
months. When it is necessary to adjust and replace the spare parts, please contact the repair personnel of our
company.
Polish the uneven contact with abrasive paper
Contactor
Replace when it does not function well
Motor The wearing conditions of carbon brush and commentator.
Reduction
Replace gear oil
gearbox
Filter Clean
Clean the dirt and dust on the friction plate of the brake; check the wearing
Brake
conditions of the friction plate
Hydraulic Replace the hydraulic oil, check the lift oil cylinder leaks or not, replace the sealing
system when necessary
Fork wheel
and fork
Check the wearing conditions, replace when not function well
wheel
bearing
9.9 Recommended working medium
（1）Hydraulic oil:
A. When normally loaded, we recommend:
Hydraulic oil: LHPISOVG46, in accordance with DIN51524T.2, average sustained temperature 40-60 degrees.
B. When heavily loaded, we recommend:
Hydraulic oil: LHPISOVG68, in accordance with DIN51524T.2, average sustained temperature above 60
degrees.
C. When light loaded in low temperature, we recommend:
Hydraulic oil: HLPISOVG32, in accordance with DIN51524T.2, average sustain temperature below 60 degrees.
For variably loaded situations, we recommend:
D. For all the working conditions mentioned above, it can be replaced by hydraulic oil LHPISOVG46 in
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