Part of the Case Repair Manuals.
Wrenching on a prewar Case? This J. I. Case LA, VA, CC, DC, DC3, DC4, DH, DO, DV, RC, SC, SO, VO shop manual PDF packs 122 pages of factory procedures for the 1937-1942 tractor line, including the VAO, VAH, VAC, and DCS variants. You get full engine teardown coverage: crankshaft and main bearings, cylinder sleeves, valve timing by punch marks, plus exploded views throughout. Transmission, final drive, brakes, steering gear, governor, ignition timing, and the hydraulic lift system each get step-by-step overhaul procedures. Torque the hydraulic pump head cap screws to 35 foot pounds, fill the lift system with 8 quarts, and check relief pressure at 980-1130 psi on the D, LA, and S series. These tractors outlived their paper manuals decades ago. Bookmarked and keyword-searchable, this PDF opens on any device; pull it up on your phone in the shop and start the rebuild tonight.
What's Inside This J. I. Case Letter Series LA-VO Manual
| System | Pages | Key Topics |
|---|---|---|
| Service Data | 4 | |
| Front System | 5-10 | Front Axle Member, Pedestal Adjust, Pedestal Overhaul, Pivot Pin, Radius Rod, Spindle (Knuckle) |
| Steering Gear | 11-13 | |
| Engine | 14-28 | Assembly R & R, Cam Followers, Camshaft, Connecting Rods & Brgs, Crankshaft & Bearings, Cylinder Head |
| Carburetor | 29-34 | Gasoline & Distillate, LPG Carburetor, LPG Filter, LPG Regulator |
| Governor | 35-40 | Adjustment, R & R and Overhaul |
| Cooling System | 41-43 | Fan and Belt, Pump, Radiator, Thermostat |
| Electrical System | 44-45 | |
| Clutch | 46-49 | Engine Clutch, Engine Clutch Shaft, Power Take-Off Clutch |
| Torque Tube | 50-65 | |
| Differential | 66-83 | |
| Brakes | 84-90 | Contracting Band Type, Disc Type (Single), Disc Type (Double), Shoe Type (Mechanical), Shoe Type (Hydraulic) |
| Belt Pulley | 91 | Pulley Brake Adjustment |
| Power Take-Off | 92-98 | Continuous Type, Non-Continuous Type |
| Hydraulic Lift Systems | 99-118 | |
| Mechanical Lift System | 119 | |
| Appendix | 120-122 |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| C | ||
| Brake camshaft lever angle | 5-10 degrees | p. 85 |
| D | ||
| Gearshaft running clearance | .004-.006 inch | p. 84 |
| All Models | ||
| head retaining cap screws torque | 35 foot pounds | p. 106 |
| hydraulic fluid original fill capacity | 8 quarts | p. 113 |
| D, LA, S | ||
| Hydraulic Relief Valve Pressure (Series D-LA-S) | 980-1130 psi | p. 102 |
| VA | ||
| Hydraulic Relief Valve Pressure (Series VA) | 4350-4500 psi | p. 108 |
| Hydraulic System Capacity (Series VA) | 8 quarts | p. 113 |
