Content Source: 2020 Ranger Diesel Tractor Owner’s Manual (9930940 R02) > Maintenance Chapter

IMPORTANT

The Owner's Manual for this vehicle contains warnings, instructions and other information you must read and fully understand before safely riding or performing maintenance on this vehicle.Always follow the warnings and instructions in Owner's Manual.

Click the CONTENTS link above for the Table Of Contents, or download a full PDF of the Owner Manual in the Owner Support area of Polaris.com

Periodic Maintenance

Any qualified repair shop or person may maintain, replace or repair the emission control devices or systems on your vehicle. An authorized POLARIS dealer can perform any service that may be necessary for your vehicle. POLARIS also recommends POLARIS parts for emissions-related service, however equivalent parts can be used.
It is a potential violation of the Clean Air Act if a part supplied by an aftermarket parts manufacturer reduces the effectiveness of the vehicle’s emission controls. Tampering with emission controls is prohibited by federal law.
Owners are responsible for performing the scheduled maintenance identified in this owner’s manual.
Careful periodic maintenance will help keep your vehicle in the safest, most reliable condition. Inspection, adjustment and lubrication of important components are explained in the periodic maintenance chart.
Inspect, clean, lubricate, adjust and replace parts as necessary. When inspection reveals the need for replacement parts, genuine POLARIS parts are available from your POLARIS dealer. Equivalent parts may be used for emissions-related service.
Service and adjustments are important for proper vehicle operation. If you’re not familiar with safe service and adjustment procedures, a qualified dealer can perform these operations.
Vehicles subjected to heavy or severe use patterns must be inspected and serviced more frequently.

SEVERE USE DEFINITION

  • Frequent immersion in mud, water or sand
  • Frequent or prolonged operation in dusty environments
  • Short trip cold weather operation
  • Racing or race-style high RPM use
  • Prolonged low speed, heavy load operation
  • Extended idle
Pay special attention to the oil level. A rise in oil level during cold weather can indicate contaminants collecting in the oil sump or crankcase. Change oil immediately if the oil level begins to rise. Monitor the oil level, and if it continues to rise, discontinue use and determine the cause. Your dealer can assist.

Maintenance Chart Key

Symbol Description
XU

Perform these procedures more often for vehicles subjected to severe use.
D

Have an authorized dealer or other qualified person perform these services.
WARNING
Improperly performing the procedures marked with a D could result in component failure and lead to serious injury or death. Have an authorized dealer or other qualified person perform these services.

Periodic Maintenance Chart

Perform all services at whichever maintenance interval is reached first. Record maintenance and service in the Maintenance Log.
Item Maintenance Interval
(whichever comes first)
Remarks
Hours CLNDR KM (Miles)
  Engine Oil Level - Daily - Pre-ride Checklist; check level daily
XU Coolant - Daily - Check level daily; replace coolant every 5 years
  Park Brake - Daily - Inspect; adjust as needed
XU Engine Fan - Daily - Inspect; replace as needed
XU Engine Fan Belt - Daily - Inspect, correct tension as needed; replace as needed
XU
D
Brake Pad Wear 10 H Monthly 160 (100) Inspect periodically
  Battery 25 H Monthly 320 (200) Check terminals; clean; test
  Fuel System 25 H Monthly 320 (200) Inspect; cycle key to pressurize fuel pump; check lines and fittings for leaks and abrasion
XU Front Gearcase Fluid (Demand Drive) 25 H 1 M - Break-in oil level check
XU Transmission Fluid (AGL) 25 H 1 M - Break-in oil level check
XU Engine Oil / Filter Change (Break-In) 50 H 1 M 1000 (625) Perform break-in oil / filter change
XU Seat Adjuster Lubrication 50 H Monthly 800 (500) Lubricate long threaded bolt and all pivot pins
XU General Lubrication 50 H 3 M 800 (500) Lubricate all fittings, pivots, cables, etc.
XU Air Filter 50 H 6 M 800 (500) Inspect (visually – do not remove unless replacement is needed); replace as needed
  Engine Breather 50 H 6 M 800 (500) Inspect; replace as needed
  Shift Linkage 50 H 6 M 800 (500) Inspect, lubricate, adjust
D Steering 50 H 6 M 800 (500) Lubricate
XU Front / Rear Stabilizer Bars 50 H 6 M 800 (500) Lubricate and inspect bushings
D Throttle Pedal 50 H 6 M 800 (500) Inspect; adjust; replace as needed
  Throttle Body Intake Ducts/Flange 50 H 6 M 800 (500) Inspect duct for proper sealing/air leaks
  Cooling System 50 H 6 M 800 (500) Inspect coolant strength seasonally; pressure test system yearly
XU Cooling Hoses 50 H 6 M 800 (500) Inspect for leaks
XU Radiator 50 H 6 M 800 (500) Inspect; clean external surfaces
XU Engine Oil Lines/Fasteners 50 H 6 M 1600 (1000) Inspect for leaks and loose fittings
  Drive Belt 100 H 12 M 1600 (1000) Inspect; replace as needed
XU Front Gearcase Fluid (Demand Drive) 100 H 12 M 1600 (1000) Change fluid
XU Transmission Fluid (AGL) 100 H 12 M 1600 (1000) Change fluid
D Fuel System 100 H 12 M 1600 (1000) Check for leaks at tank cap, lines, filter, pump, throttle body, replace if necessary
XU Engine Mounts 100 H 12 M 1600 (1000) Inspect, torque to specification; replace if necessary
  Exhaust Muffler / Pipe 100 H 12 M 1600 (1000) Inspect
  Drive Shafts 100 H 12 M 1600 (1000) Remove and grease
D Glow Plug 100 H 12 M 1600 (1000) Inspect; replace as needed
XU Wiring 100 H 12 M 1600 (1000) Inspect for wear, routing, security; inspect connectors subjected to water, mud, etc.
D Wheel Bearings 100 H 12 M 1600 (1000) Inspect; replace as needed
XU Shock Seals 100 H - - Visually inspect shock seals
D Valve Clearance 150 H - 5000 (3125) Inspect; adjust as needed
XU Engine Oil/Filter Change 200 H 6 M 1600 (1000) Perform oil / filter change
D Brake Fluid 200 H 24 M 3200 (2000) Change every two years
DXU Clutches (Drive and Driven) 200 H 12 M 3200 (2000) Inspect; clean; replace worn parts
  Suspension Bushings 250 H 24 M 3200 (2000) Inspect; replace if necessary
  Spark Arrester 300 H 36 M 4800 (3000) Clean out
D Toe Adjustment - Inspect periodically; adjust when parts are replaced
  Headlight Aim - Adjust as needed

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