Bush Hog SM 60 manual 4-10TROUBLESHOOTING, 3List of Recommended Hydraulic Oils, Manufacturer

Figure 4-4 Hydraulic Motor

Return Line Hose

Pressure LIne

Hydraulic Fittings

Motor

D. Turn motor 180º. Reinstall bolts retaining motor to spindle housing.

E. Reinstall hydraulic fittings, and hoses. Replace fitting O-rings as necessary.

4-10 TROUBLESHOOTING

Cleanliness is of primary importance for obtaining satisfactory life of hydraulic components. The life of hydraulic components is dependent upon the degree of contamination in the hydraulic oil. During usage, proper oil filling and servicing of fil- ters, breather, tank, etc., cannot be over empha- sized.

The hydraulic system must be cleaned after a major

Spindle Housing

contamination such as pump failure. This requires removal and individual flushing and cleaning of all components and lines that were exposed to the contaminated oil flow. Flushing of the system components should be done with a suitable sol- vent or diesel fuel. Clean the suction strainer, replace the return line filter, and refill tank with new hydraulic oil.

Troubleshooting procedures are listed in Table 4-4. If the problem cannot be solved or replacement parts are necessary, contact your authorized Bush Hog dealer. Please have ready your machine name, serial number, model number, purchase date, and exact cause or description of problem.

Table 4-3 List of Recommended Hydraulic Oils

Manufacturer	Hydraulic Oil	Manufacturer	Hydraulic Oil
Chevron	AW46	Mobil	DTE-25
Gulf	Harmony 46AW	Union 76	Hyd. Oil AW215
Texaco	Rando HD46	Exxon	Magnas A15
Citgo	AW46	Exxon	Nutoh 46
Shell	Tellus 46 HY Oil 46	Standard	EP Hyd. Oil #1

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