John Deere PE4024HF285 Engine

⚠ If a manual shutoff valve is installed in the discharge line, it must not be left closed during operation; closed valve can cause explosive rupture of the pump casing.

⚠ Never open the priming cover on a pump that is hot or that has been operated recently.

⚠ Do not operate the pump unless all connecting piping, fill plug and other fittings are securely installed.

1. Disconnect pump from tow vehicle by turning tongue jack clockwise; disconnect safety chains, surge brake cables and wiring harness; chock wheels.
2. Lower rear leveling jacks; turn handles clockwise until feet contact ground; adjust until pump is level.
3. Attach fittings to intake and outlet openings; ensure gasket/seal between volute and flange; tighten all hardware for airtight seal.
4. Attach rigid hose to suction side; suction hose should be at least as large as pump flange; check for foreign material; ensure O-ring seal present.
5. Lubricate O-ring seal with grease for airtight seal.
6. Attach rigid intake screen or strainer to suction hose end; openings to equal four times intake hose area.
7. Place intake hose in liquid; submergence at least four to five times pipe diameter.
8. Attach flexible hose to discharge side; ensure O-ring seal present in fitting; lubricate O-ring with grease.
9. Use concentric taper on discharge side; install pressure relief valve on discharge piping.
10. Check intake and outlet hoses for sharp bends or kinks; keep hoses as straight as possible.
11. Fill pump casing half full with water through priming port; replace cover and tighten clamp screws hand tight.

⚠ Attach a DO NOT START sign to the control panel.

⚠ If the pump handles hazardous materials, wear approved protective clothing and use appropriate safety equipment.

⚠ Never wash the unit with a high pressure hose or power washer.

1. Verify the Engine Start switch is turned to OFF and the negative battery cable is disconnected.
2. If the pump or components are hot, allow adequate cooling prior to servicing.
3. Close the suction and discharge valves, if applicable.
4. Vent the pump slowly and drain completely.

⚠ If equipment is stored more than 12 months, some components or lubricants may have exceeded their maximum shelf life; inspect and replace as necessary prior to operation.

1. Disconnect the battery cables.
2. Store the unit off the ground so no water will accumulate around the equipment.
3. Protect unit from blowing sand and dirt.
4. Stack no other items on top of pump/equipment.
5. Protect unit from the entry of any animals.
6. Periodically rotate shaft to lubricate bearings and protect bearings from brinelling.
7. Protect unit with approved drying agents (Silica Gel).
8. Ensure all bare metal areas are coated with rust preventative.
9. Inspect unit every four weeks and replace drying agents as required, or a minimum of every six months.
10. Keep an inspection record showing dates of inspection and maintenance performed.
11. Before use ensure all rust protection has been removed and remove any accumulated foreign material.
12. Before use remove all drying agents (Silica Gel).

⚠ Use only a high quality grease made specifically for lubrication of wheel bearings.

Tools: Grease gun

1. Remove the small rubber plug on the grease cap.
2. Attach a standard grease gun fitting to the grease zerk fitting.
3. Pump grease into the fitting until new grease is visible around the nozzle of the grease gun.
4. Wipe excess grease from the hub with a clean cloth.
5. Replace the rubber plug.

⚠ Use lifting and moving equipment in good condition with adequate capacity to prevent personal injury or equipment damage.

Tools: Slings, chains, hooks, forklift

1. Remove suction and discharge piping from pump prior to moving.
2. Make sure lifting equipment is in good condition and has sufficient capacity.
3. Attach slings, chains or hooks directly to the central lift point on top of the unit.
4. Use forklift pockets with care, approaching the unit as perpendicular as possible.
5. Make sure any obstructions are clear of the forklift tines before lifting.

⚠ Never adjust pump flow by attaching a valve to the intake or outlet side of the pump; restricting flow can cause overheating and explosion of the pump volute.

⚠ Avoid running the intake side dry; keep intake hose 4-5 times the hose diameter below the liquid surface (4-5 x 6 in = 24-30 in [61-76 cm]).

1. Check all hose couplings, covers and plugs are tight.
2. Check bearing oil and mechanical seal oil levels are in the middle of each sight glass.
3. Check the oil leak vent between the bearing oil and mechanical seal oil lip seals for leakage.
4. Check engine oil level, coolant level and fuel level.
5. Make sure engine starting battery is connected.
6. Make sure emergency stop switch is pulled out (deactivated).
7. Turn engine start switch key to RUN; after startup screen clears and gauges appear, crank engine in START until it starts.
8. Allow engine to run until it reaches constant speed; adjust speed with Speed Control switch.
9. Pump should self prime and discharge within minutes; if it fails to prime within five minutes, stop and check suction line for leaks.

⚠ If the pump is to remain idle during below freezing conditions, drain the pump to prevent freeze damage; clean out solids by flushing with a hose.

1. Reduce engine speed by adjusting the Speed Control switch.
2. Allow the engine to idle briefly.
3. Switch the Engine Start switch to the OFF position.

⚠ Never tow the trailer using defective parts.

⚠ Attach breakaway cable to the rear bumper of the towing vehicle, not the trailer hitch.

Tools: Torque wrench

1. Raise rear leveling jacks; release jack locking pins and rotate jacks into travel position.
2. Use tongue jack to raise or lower trailer onto hitch; lock hitch coupling and attach safety chains/cables.
3. Release jack locking pin and rotate jack into travel position; ensure locking pin snaps into place.
4. Connect trailer wiring to tow vehicle; check stop and signal lights.
5. Check trailer tire inflation and tighten or replace loose or missing wheel lugs in the specified sequence.
6. Maximum highway towing speed 45 mph (72 km/h); off-road not to exceed 10 mph (16 km/h).

⚠ Do not use anti-seize compounds on the lockscrew threads.

⚠ Use caution when removing the impeller; the impeller may be difficult to unscrew (installed with Loctite).

Tools: Impeller removal tool, Torque wrench

1. Clean shaft and impeller threads completely.
2. Apply anti-seize compound to the external shaft threads (do not use on the lockscrew threads).
3. Screw the impeller onto the shaft until tight.
4. Add or remove impeller adjusting shims to achieve .025 to .035 in (.63 to .89 mm) clearance between impeller and seal plate.
5. Apply Loctite 2760 or equivalent to impeller screw and install impeller washer and screw.
6. Torque the impeller screw; do not allow shaft to rotate while tightening.