DRESSTA TD-25M EXTRA, Service Manual

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TRANSMISSION
SECTION 7C
Page 41
DRESSTA TD-25M EXTRA
RANGE SELECTOR VALVE
13. INSPECTION AND REPAIR
1. It is recommended that all new O-rings be installed upon reassembly of the valve.
2. Clean all parts in a suitable solvent and blow dry with compressed air. Be sure all the oil
passages in the valve housing are clean and free of obstructions.
3. Inspect the parts for excessive wear and replace if necessary.
4. Inspect the condition of the springs. If they are damaged or do not fall within the specifications
shown in Paragraph 3, SPECIFICATIONS, they must be replaced.
14. REASSEMBLY AND INSTALLATION (Refer to Fig. 7C.55 and 7C.56)
NOTE: Lubricate the spools and valve bores with transmission oil upon reassembly.
1. Reassemble component parts in the sequence (3, 8, 4, 2, 4, 2, 6, 5 and 1). Tighten the bolts
securing covers (1). Torque the bolts to 26 - 28 [Nm].
2. Position the valve and O-rings on top of the transmission manifold and secure with bolts and
washers. Torque the mounting bolts to 32 [Nm].
3. Reconnect the hoses at the range selector valve.
4. Check the oil level in the main frame as described in the OPERATOR'S MANUAL.
IMPORTANT: As soon as the engine starts, observe the transmission main and range clutch oil
pressure lamp on the instrument panel. If lights, immediately turnoff the engine.
5. Start the engine. Checks for leaks. Check the oil pressures as described in Paragraph 10,
TRANSMISSION AND TORQUE CONVERTER OIL PRESSURE TEST in SECTION 7.
6. Install the center floor plate between seat and instrument panel. Install the floor mat, if cab
equipped.
RATE OF RISE VALVE
15. REMOVAL AND DISASSEMBLY (Refer to Fig. 7C.57 and 7C.58)
WARNING! Before working at the machine, be sure that the blade and ripper have
been lowered to the ground, engine is OFF, the drive train control lock lever is in
locked (ON) position and parking brake is set. The starting switch and the electrical
system master switch are turned OFF, keys are removed and the controls are
tagged to prevent inadvertent engine starting.
1. Remove floor mat (cab equipped machines). Remove the bolts securing the center floor plate
between seat and instrument panel and remove the plate.
2. Remove the bolts and washers securing the valve assembly to the top of the transmission
housing. Remove the valve assembly and gasket. Discard the gasket.
3. Disassemble component parts in the sequence indicated by the reference numbers in the
illustration. Discard gaskets (2).