Toro Groundsmaster 62/220/217-D Mower 1983 Service Manual Set (P/N 87-705-ST)

The Toro chapters cover mower installation, maintenance, diagnosis, and repair. The Onan service manual is incorporated at the end of Chapter 3 and supplies the gasoline engine’s internal overhaul procedures.

This is service documentation rather than an Operator’s Manual or parts catalog. Diesel injection-pump delivery calibration requires specialized equipment and a qualified diesel service shop.

PDF Bookmarks, Diagram Detail, and Page Count

Search and diagram navigation: PDF text search is not available. Embedded bookmarks cover the machine chapters and Onan engine sections. Small wiring labels and dense troubleshooting charts require zooming; the checked details remain readable when enlarged.

Both publications are combined in one printable, 338-page PDF. The total includes their covers, 16 blank pages, and eight pages of equipment and service-history forms.

Engine Overhaul, Hydrostatic Drive, and Cutting-Unit Repair

These selected coverage highlights outline the main workshop areas rather than reproduce the full contents. Other topics include caster-wheel bearing service and seasonal storage.

• Onan engine repair: Carburetor overhaul, diaphragm fuel-pump service, ignition and charging tests, starter overhaul, and step-by-step engine disassembly, inspection, and reassembly.

• Mitsubishi diesel repair: Glow-plug, compression, and nozzle tests; injection timing; governor and fuel-system repairs; engine removal; and cylinder-head and cylinder-block overhaul.

• Hydraulic drive and lift: Hydrostatic pressure and flow testing, traction-neutral adjustment, lift-cylinder testing, control-valve repair, transmission overhaul, and hydraulic-system priming.

• Axle and steering: Dana GT-20 axle rebuilding, differential bearing setup, ring-and-pinion contact checks, backlash adjustment, and Saginaw steering-gear overhaul.

• Electrical diagnosis: Separate gasoline and diesel wiring schematics, starting and interlock troubleshooting charts, component tests, charging-circuit checks, and wiring-harness repair.

• Brakes and P.T.O.: Bendix mechanical brake adjustment and shoe replacement, drive-coupling alignment, P.T.O. brake and belt service, and diesel-model universal-joint repair.

• Cutting units: Blade mismatch correction, height-of-cut setup, counterbalance spring service, belt replacement, gearbox overhaul, and model-specific blade-spindle rebuilding.

Written for service technicians, the Toro manual assumes mechanical knowledge rather than teaching component theory; the Onan material also requires qualified mechanical or electrical service personnel.

Gasoline and Diesel Engine Procedures

The gasoline material includes Nikki and Walbro carburetor procedures, valve and bearing inspection, cylinder reconditioning, and engine assembly specifications. The Gasoline Engine Troubleshooting Guide connects starting, power, cooling, lubrication, and governor symptoms with possible causes.

Onan starter installation differs by specification letter: earlier B43G and B48G versions require starter pinion-lash checks. Toro’s combustion-chamber cleaning schedule also distinguishes fuel use: 250 hours with regular leaded gasoline or 500 hours with unleaded gasoline.

The Mitsubishi KE75 section covers the Bosch M-type injection pump, governor, fuel bleeding, nozzle servicing, and cooling-system maintenance. Compression records and the troubleshooting sections help assess whether an overhaul is warranted before the engine is dismantled.

Hydrostatic Transmission, Axle, and Steering

Pressure and flow tests help distinguish charge-pump, relief-valve, and internal transmission faults before teardown. Specifications include a 3000 psi maximum normal operating pressure, 70–150 psi charge relief, and 700–800 psi implement relief at 3200 rpm.

The differential housing serves as the hydraulic reservoir, with a 5 qt (4.7 L) capacity and a 25-micron filter, Toro P/N 23-2300. Repair cautions explain how mixing engine oil with automatic transmission fluid, or hammering pump-lever and shaft components, can damage the hydraulic system or transmission.

The Dana axle uses a 20.9:1 double reduction. Reassembly coverage includes bearing setup, shim selection, gear-tooth contact, and backlash; Saginaw steering procedures address worm-bearing and over-center preload, bushings, seals, and linkage adjustment.

Electrical Fault Tracing and Driveline Alignment

Wiring Schematics – Groundsmaster 62/220 and Wiring Schematics – Groundsmaster 217-D accompany symptom-based charts for starting and safety-interlock faults. Diesel-specific tests cover the temperature relay, fuel-stop solenoid, and control unit; Toro’s electrical tester is identified as P/N 36-4050.

Engine-to-transmission alignment procedures include Toro alignment tool P/N 29-0060 for the gasoline models. The 217-D instructions warn that overtightening the engine drive-hub set screws can break the hub.

P.T.O., Cutting Units, and Maintenance Records

The Groundsmaster 62/220 P.T.O. System and Groundsmaster 217-D P.T.O. System views distinguish their linkage and shaft arrangements. Maintenance guidance includes the requirement for blades and shafts to stop smoothly within seven seconds after disengagement.

Cutting-unit procedures distinguish bolt-retained blades from the Model 30545 nut-retained arrangement. Blade bolts use 75–100 ft-lb; Model 30545 units with serial numbers 20001–39999 use a 50–60 ft-lb blade locknut specification. Spindle-service sections separately identify Model 30545 serial numbers 20001 and up.

Gearbox rebuilding includes shim adjustment and a gear-tooth contact-pattern view. Bearing, spacer, seal, and snap-ring arrangements are identified by spindle design. Separate maintenance charts cover the gasoline mowers, diesel mower, and cutting units; product-record, daily, monthly, and special-maintenance forms support service tracking.

Use the manual’s isolation, blocking, pressure-control, and rotating-equipment precautions when servicing the hydraulic system, P.T.O., blades, lift system, and counterbalance springs.

Selected KE75 Compression, Valve, and Fuel-System Specifications

The diesel specification table gives standard compression as 455.2 psi at 280 rpm, with a 369.8 psi service/repair limit. Cold valve clearance is 0.0137 in. (0.35 mm) for both intake and exhaust valves.

The nozzle specification lists a standard opening pressure of 1707 psi (120 kg/cm²). Lubrication data specifies a crankcase capacity of 3.3 qt (3.1 L), including the oil filter.