MAINTENANCE
7-42
IMPORTANT:
yWhen connecting hydraulic hoses and pipes, take
special care to keep seal surfaces free from dirt and
to avoid damaging them. Keep these precautions in
mind:
yWash hoses, pipes, and the tank interior with a
washing liquid and thoroughly wipe it out before
reconnecting them.
yOnly use O-rings that are free of damage or defects.
Be careful not to damage them during reassembly.
yDo not allow high pressure hoses to twist when
connecting them. The life of twisted hoses will be
shortened considerably.
yCarefully tighten low pressure hose clamps.
Do not overtighten them.
y When adding hydraulic oil, always use compatible
oils; do not mix brands of oil. As the machine is
filled with Super EX 46HN when it is shipped from
the factory, use it as a general rule. When selecting
to use another brand of oil listed in the table
“Recommended Hydraulic Oil”, be sure to completely
replace the oil in the system.
y Do not use hydraulic oils other than those listed in
the table “Recommended Hydraulic Oil”.
y Never run the engine without oil in the hydraulic oil
tank.
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