﻿GET_GEVOMechL2_02_01_01_117 - ANIMATION Screen
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Pre-Lube Pump and Motor Assembly Removal

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1. Drain the oil from the lubricating oil system.

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2. Remove the applicable locomotive handrail section to allow for pre-lube pump and motor assembly removal.

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3. Disconnect the inlet and outlet hoses from the pre-lube pump JIC fittings.

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4. Remove the terminal junction box cover on the side of the pre-lube motor by removing the six screws.

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5. Remove the wire lugs from the terminals inside the terminal junction box.

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6. Disconnect the conduit fitting on the top of the terminal junction box and pull the plastic conduit and wires from the pre-lube pump and motor assembly.

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7. Re-install the cover on the terminal junction box and torque the six screws to 20-25 lb.-in (2.26-2.82 Nm).

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8. Remove the four mounting bolts that secure the pre-lube pump and motor assembly to the floor of the radiator cab.

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9. With the appropriate lifting device, gently slide the pre-lube pump and motor assembly from the radiator cab, and then lift and remove the assembly from the walkway.

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Pre-Lube Pump and Motor Assembly Installation

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1. With an appropriate lifting device, place the pre-lube pump assembly on the radiator cab.

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2. Install the four mounting bolts that secure the pre-lube pump and motor assembly to the floor of the radiator cab.

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3. Torque the four mounting bolts to 55-62 lb.-ft. (74.5-84 Nm).

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4. Re-install the inlet and outlet hoses to the JIC fittings on the pre-lube pump and tighten until snug.

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5. Torque the inlet hose to the inlet JIC fitting to 210-220 lb.-ft. (284-298 Nm).

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6. Torque the outlet hose to the outlet JIC fitting to 140-150 lb.-ft. (190-203 Nm).

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7. Remove the terminal junction box cover on the side of the pre-lube motor by removing the six screws.

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8. Insert the wires and plastic conduit through the top conduit hole in the terminal junction box and tighten the conduit fitting.

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9. Connect the wire lugs into the terminals inside the terminal junction box and tighten to 120-140 lb.-in (13.56-15.82 Nm).

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10. Re-install the cover on the terminal junction box and torque the six screws to 20-25 lb.-in (2.26-2.82 Nm).

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11. Install the locomotive handrail section that was removed during pre-lube pump and motor assembly removal.

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12. Fill the lubricating oil system.

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Pre-Lube Check Valve Replacement

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1. Remove the pre-lube supply hose from the check valve using a TESCO T87340 2 ¼-inch crow’s foot and breaker bar.

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2. Remove the old check valve using a TESCO T87330 2-inch crow’s foot and breaker bar.

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3. Insert and rotate the new check valve a few turns by hand to verify that the thread-o-let is not oval.

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4. If the check valve binds or if the thread-o-let has an oval shape, either replace the pipe or re-tap the thread-o-let with a 1.5-inch NPT tap as follows:

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a. Remove the Victaulic coupling, and then remove the oil inlet pipe flange assembly from the left side of the oil cooler.

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b. If re-tapping the thread-o-let, use the 1.5-inch NPT tap to re-tap the threads, then clean the pipe of metal shavings before reinstalling.

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c. With Vic-Lube applied to the Victaulic coupling seals, and the Victaulic coupling mounted horizontally with respect to the split line of the coupling, reinstall the re-tapped or replacement oil inlet pipe flange assembly to the left side of the oil cooler.

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5. Install the replacement check valve, then torque to the appropriate value with a TESCO T87330 2-inch open end crow’s foot.

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6. With no Vic-Lube applied to the JIC hose fitting, use a TESCO T87340 2 ¼-inch crow’s foot to torque the hose to the check valve to the correct torque value.

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7. Start the locomotive and re-evaluate oil pressure to ensure proper operation of the replacement check valve.

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Victaulic Coupling Removal

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1. If required, drain oil from the lubricating oil filter housing.

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2. Remove the bolts and nuts holding the coupling halves together and remove the coupling.

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3. Slide the gaskets (one on each end of the pipe) onto the removable pipe.

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4. After the gaskets and the body of the coupling have cleared the fixed pipe, remove the pipe.

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5. Remove the gaskets from the pipe.

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6. Protect the pipe ends after disassembly.

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Victaulic Coupling Installation

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1. Inspect the gaskets, sealing surfaces of the pipe, and cleanliness of the pipe.

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2. Insert the pipe with one person holding the pipe in position while another person carefully slides the gasket into place.

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3. Install the coupling halves, then install the bolts and nuts ensuring that the oval under each bolt head is mated into the recessed oval in the coupling half.

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4. Tighten the nuts until there is a metal-to-metal contact between the coupling halves, then torque the Victaulic coupling bolts.

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5. Restore the locomotive, and with the engine at IDLE, check for oil leaks.

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6. Torque the Victaulic coupling bolts to the appropriate value.
