Part of the Case Operator Manuals.
Need the factory operating guide for your Case 150 or 190 garden tractor? This 44-page Case 150, 190 Operator Manual PDF (OEM #9-1851) walks you through every pre-start check, control function, and maintenance interval Case specified at the factory. Inside: a full safety section covering grade operation, neutral starting position, and hydraulic brake use, plus operating controls and instruments laid out from the run-in procedure through starting sequence. Preventive maintenance covers belt adjustment, air cleaner service, carburetor adjustments, spark plug replacement, ignition timing, and breaker point adjustment. Run SAE 5W20 below 32°F and switch to SAE 20W40 in summer; the engine holds 3 pts. Grease the steering gear box every 100 hours, pull the transmission filter screen at 1,000 hours or yearly. No more guessing at intervals. Bookmarked for instant navigation; open it on your tablet, walk to the tractor, and wrench.
What's Inside This Case 150, 190 Operator Manual
| System | Pages | Key Topics |
|---|---|---|
| Serial Number | 11 | Tractor Model Number, Tractor Serial Number, Engine Model Number, Engine Serial Number, Engine Specification Number |
| Engine Specifications | 12-14 | General Specifications |
| Fuel Specifications | 15-16 | Fuel Conditioner |
| Safety Precautions | 17 | Operating Controls, Neutral Position, Level Surface, Driving on Grades, Speed Control, Hydraulic Brake, Low Range Operation, Engine Running |
| Lubrication | 18-20 | Lubrication Chart, Engine Lubrication |
| Operating Instructions | 21-25 | Run-In Procedure, Pre-Starting Check List, Operating Controls and Instruments, Starting Procedure |
| Preventive Maintenance | 26-35 | Starter-Generator Belt Adjustment, Starter-Generator Belt Replacement, Air Cleaner, Carburetor Adjustments, Spark Plug, Ignition Timing, Adjusting Breaker Points, Electrical System, Storage Battery, Wiring Diagram |
| Lubrication & Maintenance Records | 36-44 | Table of Contents, Lubrication and Preventive Maintenance Records |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Engine Oil Viscosity (Winter, below 32° F) | SAE 5W20 Motor Oil | p. 19 |
| Engine Oil Viscosity (Summer) | SAE 20W40 Motor Oil | p. 19 |
| Transmission Filter Screen Check Interval | 1000 HOURS OR YEARLY | p. 19 |
| Steering Gear Box Lubrication Interval | 100 HOURS OR MONTHLY | p. 19 |
| Engine Oil Capacity | 3 pts. | p. 19 |
| Engine Oil Change Interval | 25 hours | p. 19 |
| Breaker Point Gap | .020 in. | p. 12 |
| Full Load Engine Speed | 3500 RPM | p. 12 |
| Idle Engine Speed | 1000 RPM | p. 12 |
| Starter-Generator Belt Deflection | 1/4 inch | p. 27 |
| Spark Plug Torque | 27 foot-pounds | p. 30 |
| Piston Displacement | 23.9 cu. in. | p. 12 |
