Removal (Fig. 113)
2. Install oil cooler using Figures 113, 114 and 115 as
guides (see Hydraulic Hose and Tube Installation in the
General Information section of this chapter).
CAUTION
3.
Fill reservoir with hydraulic fluid as required.
The radiator and oil cooler may be hot. To avoid
possible burns, allow the engine and cooling
systems to cool before working on the oil cooler.
1
1
1.
Park machine on a level surface, lower cutting
decks, stop engine, engage parking brake and remove
key from the ignition switch.
2.
Installing Hydraulic System Components at the begin-
ning of the Service and Repairs section of this chapter.
Read the General Precautions for Removing and
3.
oil cooler removal, thoroughly clean exterior of cooler.
To prevent contamination of hydraulic system during
3
2
4.
guides.
Remove oilcooler usingFigures 113,114and 115as
Figure 114
1.
2.
Oil cooler latch
Hose to oil cooler
3.
Hose from oil cooler
5.
If hydraulic fittings are to be removed from oil cooler,
mark fitting orientation to allow correct assembly. Re-
move fittings from cooler and discard O--rings.
1
2
Inspection
1.
Backflushoilcoolerwithcleaningsolvent.Aftercool-
er is clean, make sure all solvent is drained from the
cooler.
CAUTION
Use eye protection such as goggles when using
compressed air.
Figure 115
2.
2.
opposite direction of the oil flow.
Dry inside of oil cooler using compressed air in the
1.
Oil cooler latch
Oil cooler
3.
Make sure fins are clear of dirt and debris.
Plug both ends of oil cooler. Clean exterior of cooler.
4.
The oil cooler should be free of corrosion, cracked
tubes and excessive pitting of tubes.
Installation (Fig. 113)
1.
If fittings were removed from oil cooler, lubricate and
placenewO--ringsontofittings.Installfittingsintocooler
openingsusingmarksmadeduringtheremovalprocess
to properly orientate fittings. Tighten fittings (see Hy-
draulic Fitting Installation in the General Information
section of this chapter).
Groundsmaster 4500--D/4700--D
Page 4 -- 137
Hydraulic System
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