Hydraulic Hoses; Air Filter - Holmatro DPU 31 PC Manual De Instrucciones

8.4.4

Hydraulic hoses

• Clean the hose with luke warm water and a mild soap solution.
• Check the hose for damage and leaks. Replace the hose if it leaks, has kinks, the reinforced cover
is visible or it has blisters or bulges higher than 1 mm. In case of doubt always contact the Holmatro
dealer who can assess the seriousness of the damage.
• Replace the hose no later than 10 years after the date of manufacture, regardless of its use and
external appearance. The date of manufacture is part of the test code, the first 4 digits of the test
code specify the date of manufacture of the hose (yymm*****).
8.4.5 Engine oil
Check the oil level
• Position the pump on a solid level base.
• Remove the screw (Fig. 5/1) and remove the service panel (Fig. 5/2) from the pump.
• Remove the dipstick (Fig. 6/1) and clean it.
• Install the dipstick again and then remove it. Check whether there is any oil on the dipstick.
If there is no oil, the oil level is too low (Fig. 7/2).
• If necessary, add engine oil through the opening up to the maximum level (Fig.7/1).
• Install the dipstick and tighten it firmly.
• Put back the service panel on the pump and fasten it with the screw (Fig. 5/1).
Replace the engine oil
WARNING
Used oil must be collected and disposed of in an environmentally safe way.
The engine oil should be drained while the engine is warm.
• Position the pump on a solid level base.
• Remove the screw (Fig. 5/1) and remove the service panel (Fig. 5/2) from the pump.
• Remove the dipstick (Fig. 6/1).
• Drain the engine oil by tilting the pump (Fig. 17). Prevent petrol from leaking through the fuel cap.
• Fill the engine with the correct engine oil through the dipstick opening (Fig. 6/2) up to the maximum
level (Fig. 7/1).
• Install the dipstick and tighten it firmly.
• Put back the service panel on the pump and fasten it with the screw (Fig. 5/1).
8.4.6

Air filter

Clean or replace the air filter element every year. Frequent usage in dusty and sandy situations can
make it necessary to clean or replace the air filter sooner. Spare air filters are available at Holmatro.
A dirty air filter limits the air flow causing the engine to run less efficient.
CAUTION
Never start the pump without the air filter.
Remove the air filter
• Remove the screw (Fig. 5/1) and remove the service panel (Fig. 5/2) from the pump.
• Remove the screw (Fig. 18/4) and remove the air filter cover (Fig. 18/3).
• Remove both filter elements (Fig. 18/2) from the air filter holder (Fig. 18/1). Clean if necessary.
Clean the air filter
DPU 31 PC 916.000.116_004
EN
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