Hydraulic Oil Cooler Replacement; Hydraulic Oil Cooler Removal - Toro Diesel Z Master Service Manual

8. Install the front engine panel (Fig. 365).
Fig 365
9. Install the negative battery cable from the battery.
10. Lower the seat.

Hydraulic Oil Cooler Replacement

Machines built prior to 2008: Under certain conditions
higher than desired case drain pressure or hydraulic
pressure "spikes" can force oil past the tandem pump
trunnion shaft seal. To correct this, there is an oil cooler
kit (115-3565). With trunnion shaft seals, a larger cap-
acity oil cooler and increased diameter (from 3/8" to 1/2")
case drain hoses and fi ttings. Refer to Z Master Zero
Radius Tractors Service Bulletin #93 Issued: March 7,
2008.
Z580/Z593/Z595 Diesel Service Manual
HYDRAULIC SYSTEM

Hydraulic Oil Cooler Removal

1. Park the machine on a level surface, disengage the
PTO, engage the parking brake, turn the ignition off
and remove the key.
2. Raise the seat.
3. Remove the negative battery cable from the battery.
4. Raise the hood assembly.
5. Remove the 3 bolts, washers and nuts securing right
side top frame brace. Remove the top brace (Fig.
366).
IMG_7862
Fig 366 PICT-3421
4
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