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Installation, Operation, and Maintenance Manual
Trencher
To the Owner:
Thank you for purchasing a NorthStar trencher. Your machine is designed for long life, dependability, and the
top performance you demand!
machine's operation, maintenance and safety precautions. Everyone who operates this machine must read and
understand this manual. The time you take now will prolong your machine's life and prepare you for its safe
operation. Enjoy the exceptional performance of your NorthStar trencher, the industry leader!
The manufacturer reserves the right to make improvements in design and/or changes in specifications at any
time without incurring any obligation to install them on units previously sold.
WARNING! Call utilities before you dig. Do not straddle trench with trencher. Move trencher backward and
away from the trench as you dig.
Engine Oil
Engine is shipped without oil. Fill before starting.
Use SAE 10W-30 motor oil.
Hydraulic Oil
The hydraulic tank needs to be filled with oil before starting engine.
Use 10Wt AW32 (Anti Wear) fluid. Item #4040.
Storage
Add fuel stabilizer to the fuel tank before long term storage.
Maintenance
Engine:
Schedule
Read and understand all manuals before operating.
Digs trenches in earth up to 7ft deep.
:
Take time now to read through this manual so you better understand the
Oil: change after first 5 hours, then annually or every 25 runtime hours.
Spark Plug: inspect every 100 runtime hours.
Air Filter: replace annually or every 100 runtime hours.
Any Questions, Comments, Problems, or Parts Orders
Call NorthStar Product Support 1-800-270-0810
ITEM No. 4065
SERIAL No.
Quick Facts
M4065S.1
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Summary of Contents for NorthStar 4065
- Page 1 Digs trenches in earth up to 7ft deep. To the Owner: Thank you for purchasing a NorthStar trencher. Your machine is designed for long life, dependability, and the top performance you demand! Take time now to read through this manual so you better understand the machine’s operation, maintenance and safety precautions.
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Page 2: Table Of Contents
Table of Contents Rules for Safe Operation Digging Mode Unpacking Operation Instructions Assembly Instructions Maintenance and Storage Hydraulic Oil Troubleshooting Towing the Trencher Parts Breakdown 13-14 Limited Warranty Important - Rules for Safe Operation Training Read the Owner’s Manual completely before attempting to use this trencher. Do not allow anyone to operate your trencher who has not read the Operator’s Manual or has not been instructed on the safe operation of the trencher. -
Page 3: Unpacking
Unpacking Closely inspect all contents in the shipping carton. -If you have missing or damaged components then: Contact Product Support at 1-800-270-0810. Due to the weight of the trencher, two people are needed to unpack. The following procedure prepares the trencher for towing. - Page 4 Unpacking Raise the boom to the full upright position by pulling lever #3. The trencher will now have its weight on wheels and tow bar. Turn the engine off. Install the up-down and sided-to-side travel pins that were removed earlier. Relieve system pressure by pushing lever #3.
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Page 5: Assembly Instructions
Assembly Instructions Attach bucket to boom with 1 x 8 pins. Secure 1 x 8 pins with cotter pins. -
Page 6: Hydraulic Oil
Hydraulic Oil 1.) As you sit in the operator seat, there is an oil sight gauge under left side of the seat. The oil sight gauge is in the hydraulic oil tank. 2.) Most hydraulic oil is yellow-green in color. If the tank is full, the oil sight gauge should have a yellow-green tint. The oil level should be up to the black line at the top of the oil sight gauge. -
Page 7: Towing The Trencher
Towing the Trencher Always obey all state and local regulations when towing the trencher on public roads or highways. Never allow anyone to sit or ride on your trencher. They could easily fall off and be injured. The trencher is not a trailer. Do not carry any cargo on the trencher. It can fall off and endanger you and other drivers. -
Page 8: Digging Mode
Digging Mode After towing the trencher to the desired location, follow these set-up instructions. Do not sit on the trencher while setting it up. 1.) Remove outriggers from their vertical position and set them aside. This reduces weight. Outriggers are heavy, use care when lifting. - Page 9 5.) Remove wheels. Looking at unit as if you were sitting is operator seat, put outrigger in front left slot, secure with pin and put front left wheel by rear right slot. Install other outrigger in front right slot, secure with pin and put front right wheel by rear left slot.
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Page 10: Operation Instructions
Operation Instructions Before starting this trencher, review the “Rules for Safe Operation.” Failure to follow these rules may result in serious injury to the operator or bystanders. The machine owner should instruct all operators in safe trencher operation. Call all utilities or a one-call service to mark utility lines. Before digging with the trencher, make sure trencher is in digging mode. -
Page 11: Maintenance And Storage
Maintenance and Storage Maintenance Before performing any maintenance on the trencher, it must be placed in maintenance mode. (a.) Turn off engine (b.) Move the control valves handle back and forth with the engine OFF to relieve hydraulic pressure. (c.) Rest boom on the ground. (d.) Unplug spark plug wire from spark plug Clean debris from the engine cylinder, cylinder head fins, blower housing rotating screen, and muffler areas. -
Page 12: Troubleshooting
Troubleshooting PROBLEM Cylinder rod will not move SOLUTION: A,C,E,O,Q,R,U,V Slow cylinder shaft speed when extending or SOLUTION: E,J,L,O,R,S,T,W retracting Trencher will not dig or digs extremely slowly SOLUTION: D,H,J,M,R,S,T,W Engine stalls during digging motion SOLUTION: K,N,P Engine will not turn or stalls under low load SOLUTION: B,F,K,Q,V conditions Leaking pump shaft seal... -
Page 13: Parts Breakdown
Parts Explosion – 4065 – Rev S.1... - Page 14 Component List – 4065 – Rev S.1 ITEM PART# DESCRIPTION ITEM PART# DESCRIPTION 39115 9hp Honda Engine 406520 Outrigger Pin Coupling, 1” 3007 37877 Pin, 1.5 x 9.25, greasable 3009 Coupling Insert 406515 Side-Side Travel Pin Coupling, 1/2” 3002 40652...
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Page 15: Limited Warranty
The NorthStar Product you just purchased is built with the finest material and craftsmanship. Use this product properly and enjoy the benefits from its high performance. By purchasing a NorthStar product, you show a desire for quality and durability. Like all mechanical equipment this unit requires a due amount of care. Treat this unit like the high quality piece of machinery it is. - Page 16 Manufactured by Northern Tool + Equipment Co., 2800 SouthCross Drive West P.O. Box 1499 Burnsville, MN 55337-0499...