Part of the Case Repair Manuals.
All 199 pages of this Drott 40 Cruz-Air Series "B" Service Manual (OEM #S-406179M1) are factory documentation for one machine: the Series B mobile excavator. Inside, you get a full scheduled maintenance section with service charts, lubrication fitting layouts, and component fluid capacities, plus dedicated troubleshooting procedures covering the mechanical, air, electrical, and hydraulic systems. Open to the schematics section and you'll find wiring coverage for charging, control, and instrument circuits; hydraulic diagrams spanning main pump through swing, hoist, and auxiliary circuits; and a torque chart section with JIC swivel nut values. Service your air cleaner every 100 hours or two weeks; torque differential bearing cap capscrews to 116-129 lb-ft on 9/16" 12-thread hardware. Your machine is down. Search by keyword, jump to any section, and walk out to the excavator with the right number in hand.
What's Inside This Drott 40 Cruz-Air Series "B", Drott 40 Cruz-Air Series "B" Manual
| System | Pages | Key Topics |
|---|---|---|
| General | Safety Precautions, Nomenclature, Introduction, Directional Reference, Parts and Service | |
| Scheduled Preventive Maintenance | Introduction, Lubricant and Fluid Recommendations, Component Capacities, Hydraulic System Operating Pressures, Preventive Maintenance Schedule, Service Chart | |
| The Mechanical System | Boom, Dipper Stick, Bucket, Swing Mechanism, Drop Box Transmission, Undercarriage, And Travel Drive | |
| The Air System | Air-Over-Hydraulic Control System, Air Schematic, Maintenance, Troubleshooting, And Disassembly | |
| The Electrical System | Description, Maintenance and Troubleshooting (Introduction, Charging Circuit, Control Circuits, Lights and Instrument Circuits, Collector Ring) | |
| The Hydraulic System | Hydraulic Pump, Main Control Valve, Swing Motor, Boom and Bucket Cylinders, And Hydraulic Troubleshooting | |
| Torque Charts and Schematics | Recommended Torque Values, Jic Swivel Nut Torque Values, Air Schematic, Electrical Schematic, Hydraulic Schematic, Graphic Symbols |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Pinion Bearing Cage to Carrier Capscrews torque | 3/8" 16 THDS: 30-40 lb-ft (40-54 Nm); 7/16" 14 THDS: 50-65 lb-ft (68-88 Nm); 1/2" 13 THDS: 80-105 lb-ft (108-142 Nm); 5/8" 11 THDS: 130-170 lb-ft (176-230 Nm) | p. 65 |
| Differential Bearing Cap to Carrier Capscrews torque | 9/16" 12 THDS: 116-129 lb-ft (157-175 Nm); 5/8" 11 THDS: 160-180 lb-ft (217-244 Nm); 3/4" 10 THDS: 290-320 lb-ft (393-434 Nm); 7/8" 14 THDS: 375-415 lb-ft (508-562 Nm); 7/8" 9 THDS: 470-520 lb-ft (637-705 Nm) | p. 65 |
| Battery type and capacity | Two 12 volt, 90 amp, 78 plate Batteries, connected in parallel | p. 115 |
| Battery electrolyte specific gravity (fully charged) | 1.260 to 1.265 corrected to 80° F. (26.6° C.) | p. 117 |
| Air cleaner element cleaning/replacement interval | Every 2 weeks or 100 hours clean or replace element; replace after every 5 cleanings | p. 12 |
| Air cleaner element cleaning air pressure | Nozzle pressure should not exceed 100 psi (690 kPa) | p. 18 |
| General seal replacement | Replace all parts found defective, plus all "o" rings, gaskets and seals | p. 52 |
| Engine overheating possible causes | Insufficient coolant or dirty fins, Defective thermostat, Insufficient lubricating oil | p. 21 |
| Hydraulic oil overheating possible causes | Repeated by-passing of oil through relief valve due to improper operation, Clogged oil screens, Too light an oil, Oil level too low, Lines to cooler plugged, Dirty oil | p. 145 |
| Axle bearings wear causing noise/vibration | Replace item found defective | p. 37 |
| Torque Converter & Revers-O-Matic worn bearings causing noise/vibration | Replace | p. 28 |
| Engine Crankcase Capacity | 12 qts. (11.4L) | p. 9 |
