6-66 4203780 First Edition
HYDRAULICS
6
Front Deck Valve
Removal and Installation
See Figure 6-70.
1. Park the mower safely. (See “Park Mower Safely” on
page 1-6.)
2. Drain hydraulic oil tank. (See “Hydraulic Oil Tank—
Drain Procedure” on page 6-58.)
3. Thoroughly clean the valve, especially the area
surrounding the hydraulic hoses, tubes, and fittings.
Figure 6-70
NOTE
Label connector before disconnecting to ensure correct
installation.
4. Disconnect electrical connector (8) from solenoid.
NOTES
• Label all hydraulic hoses and tubes before
disconnecting to aid in installation.
• Close all openings with caps or plugs to prevent
contamination.
5. Disconnect hydraulic hoses (1, 3, and 4).
6. Disconnect hydraulic tube (9).
7. Support the deck valve (2).
8. Remove the mounting screws (5), washers (6), and
nuts (7).
9. Remove the deck valve (2).
Installation Notes
• Install the deck valve by reversing the order of
removal.
• Make sure new O-rings are in place before installing
hoses on fittings.
• Replace hydraulic oil return filter. (See “Hydraulic Oil
Return Filter” on page 6-67.)
• Refill hydraulic tank. (Refer to “Safety, Operation, and
Maintenance Manual” for oil specifications.)
• Start engine. Check hydraulic system for leaks.
Repair as necessary.
• Check hydraulic oil level and add if necessary.
Disassembly, Inspection, and Assembly
See Figure 6-71.
NOTE
Note orientation and position of all hydraulic hose and
tube fittings.
1. Remove all hydraulic hose and tube fittings from the
deck valve.
TN1744
1
3
4
8
9
2
7
6 5
7
6 5
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