SPIDER ASSEM. 4N4174 - Caterpillar

PROCEDURE FOR INSTALLATION OF THE NEW PARTS
1. Remove the 5L7364 and 5L7296 Covers.2. Remove the 4M7910 Piston, 5M6108 and 5M6112 Springs and the 3N4324 Valve Assembly.3. Install the 3T2254 Valve Assembly with the existing 7M1397 Spacers, the 8M6402 and 8M6403 Springs and the 3T2255 Piston.4. Start the engine and warm up the transmission oil. At low idle rpm with the marine gear control in either the "ahead" (forward) or "astern" (reverse) position, the clutch pressure must be 1740 50 kPa (253 7.5 psi). This will give 240 kPa (35 psi) at low idle rpm with the marine transmission in the "neutral" position.Adjust the in-gear pressures with 7M1397 Shims to give the correct pressure.
If the pressure in the "neutral" position is more than 280 kPa (40 psi) and there is a ratchet noise when the transmission is engaged, remove shims to decrease the pressure.If the pressure takes more than five seconds to increase in the "ahead" or "astern" position, check the neutral pressure. If necessary, increase the neutral pressure to 240 to 280 kPa (35 to 40 psi) by the addition of shims.
Location of the new parts and the covers.