Control Valve Removal and Installation (Fig. 23)
1.Remove knob from the shift lever and disassemble the right side panel from the machine.
2.Remove the seat or secure it in an up position, disconnect the wires from the safety switch located on the valve bank and place a drain pan under the valve bank.
3.Disassemble the chain links from all five (5) spools.
4.Tag and identify the lines leading to the valve bank, disconnect and cap the lines and fittings with plastic plugs.
5. Loosen the capscrews securing the valve bank to the | Figure 23 |
frame and remove the valve bank. |
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NOTE: Shims may be installed between the bank and |
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frame. Note the quantity and mounting location and |
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install in proper location upon reassembly. |
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6.Reverse steps 1 - 5 to install the valve bank. Do not
7.Check to be sure all lines are routed correctly and are not in contact with one another or other components. It should be possible to slip a strip of paper between any lines and other components in close relationship. Relo- cate if necessary.
8.Adjust the traction linkage, switches and reel drive camshaft as necessary.
Relief Valve Removal and Installation (Fig. 24)
1.Be careful not to interchange parts, such as springs or shims, between relief valves. The same number and thickness of shims must be installed when reassembling the relief valve.
2.Clean and inspect relief valve parts and the valve section housing. Replace parts as necessary. Install new seals and
3.Before operating the machine, check the relief pres- sure for the affected relief valve. (See the Testing section of this chapter.) Adjust relief valve by adding or removing shims between the spring and poppet.
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| Figure 24 |
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| 1. | Main & No. 1 section relief | 3. No. 3 section port relief |
| 2. | No. 2 section port relief | 4. No. 4 (traction) relief |
Greensmaster® 3100 | Page 4 - 45 |
| Repairs |
