John Deere 125, 90, 60 User Manual

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30-200-1

60, 90 AND 125 SKID-STEER LOADERS

CSM286

60 Skid-Steer Loader with utility bucket

C'SM287

90 Skid-Steer Loader with light material bucket

CSM7Z4

Aug. 64 litho in U.S.A.

125 Sk/d-St8er Loader with dirt and foundry bucket and teeth

30-200-2

LARGE OPERATING CAPACITIES

Model 60-600lb. Model 90-700 lb. Model 125Gas-1325 lb. Model 125Diesel-141Olb.

Good productivity,

COMPACT DESIGN

Narrow width and short overall length allows working in tight areas.

VARIETY OF BUCKETS AND FORKS AVAILABLE

Handles many applications.

60,90 and 125 Skid-Steer Loaders

PRODUCT PROFILE

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ROPS ROLL-GARD - STANDARD

Comes with canopy, side screens and built-in lift

arm lock. Safety.

- Operator

RUGGED ENGINES

Model 60 has 17-h.p., Model 90 has 23.0-h.p. and Model 125 has 37-h.p. gas or 40-h.p. diesel engines. All engines have proven themselves as reliable

power plants.

CSM947

'OPERATIONAL AND

PARKING DISK BRAKES

Providesafety and precise

control.

HYDROSTATIC DRIVES

Quick and responsive for greater productivity. Requires less maintenance than belt-driven machines.

60, 90 and 125 Skid-Steer Loaders

PRODUCT FEATURES

30-200-3

Compact and Maneuverable

John Deere skid-steer loaders are compact in design for

greater maneuverability in tight, close-quarter areas. They will operate in areas in which the conventional, tractor- mounted loadersare too largetofit. Narrow and able to turn within their ownradiuses, these machines are fully at home

inside calf pens, milking barns and poultry houses. Other applications include:generalcontractors, foundries, fertiliz- er plants, barge lines, nurseries and rental.

The little 60Loader is only 35-1/4inches wide;the 90is 47

incheswide;and the Model 125is 59-1/2 inches wide. These

dimensions apply to those loaders equipped with standard-

equipment tires, and without buckets. For further informa- tion on size, see "Specifications".

Anotherreason that these machines willprovide such out-

standing maneuverability is their four-wheel drive features.

Left and right wheels operate independently of each other, and can counter-rotate so that the loader can turn 360 de-

grees in its own track. Engines

John Deere skid-steer loaders use engines that are de- signedfor the rugged, tough use to which skid-steer loaders are subjected.

125 Skid-Steer Loader

The 125is availablewith a liquid-cooled gasolineor diesel engine.Both engines are compact and smooth in operation. The 125 gasoline engine develops 37 horsepower at 2800 rpm. The continental engine has earned its reputation in

forklift trucks and other heavy-duty, industrial-type equip- ment. It provides a 21 percent torque rise.

The 125 Diesel engine develops 40 horsepower at 2800

rpm. The Isuzu Diesel has provided years of dependable

service for refrigeration units in semi-trailer trucks. John

Deerewasthe first to use Isuzu in a skid-steer loader. Today it sets the standard for the industry.

90 Skid-Steer Loader

The 90 uses a proven, two-cylinder, 23-horsepower, gaso- lineengine.This engineis wellmatched for the size ofthe 90 and isdesigned to giveexcellent reliability throughout years

of service.

60 Skid-Steer Loader

The engine used in the 60 is a two-cylinder, 17-horsepow- er, air-cooled, gasoline engine.

Hydrostatic Drive

All three models utilize hydrostatic drive, for immediate response and increased productivity. The hydrostatic sys- tem is totally independent of the hydraulic system. Hydro-

static drive also means less maintenance than for loaders with variable drive systems. Hydrostatic drive eliminates gear boxes, clutches, and variable drive belts, all high main- tenance parts. This lower maintenance requirement will

help to increase productivity potential. Hydrostatic Drive Operation-60 and 90 Loaders

(60 Skid-Steer Loader shown)

The hydrostatic variable displacement, piston pumps are mounted, side by side, under the loader seat. Drive pulleys are located on the back of each pump behind the mounting plate.

LEFT

P.UMP PULLEY

CSM948

The two top pulleys are attached to the hydrostatic

pumps, and the lower pulley is attached to the engine crank- shaft. A drive belt is routed around the pulleys. A belt idler,

activated by the drive clutch lever, takes up the slack in the belt when the pumps are engaged.

ENGINE PULLEY

(Continued on next page)

RIGHT PUMPPULLEY

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Hydrostatic Drive Operation- 60 and 90 Loaders-Continued

60, 90, and 125 Skid-Steer Loaders

FILTER

Each pump is connected by hose routing to a hydrostatic gearmotor.Hydraulic fluid is drawn by the pumps fromthe reservoirthrough a filter. The pumps then deliver the pres-

surized fluid to the motors.

PUMP

CSM949

REAR PRIVE SPROCKET

(60 Skid-Steer Loader shown)

The motors and chains of the 60 Skid-Steer Loader are

located under the floor panel, in the 18-U.s.-gallon reservoir, for cooling and lubrication.

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CSM950

FRONTDRIVE SPROCKET

(90 Skid-Steer Loader shown)

Sprockets on the output shaft of each motor are connect- ed to each axledrive sprocket by a one-step drive chain, in order-to obtain four-wheel drive.

(90 Skid-Steer Loader shown)

On the 90 Skid-Steer Loader, the ratio between engine

horsepower,hydrostatic motor sizeand reservoir sizeis such that the motors have sufficient coolingwithout being placed inthe hydraulic reservoir.The chains are located in 1.5-U.S.- gallon chain cases for lubrication ("A" above).

The 90 Loader features a T-bar, and the 60 Loader uses

two levers to control the direction and ground speed of the

loader. Two-lever control is necessary on the 60, in order to

allow easy entry and exit of its narrow operator station.

Aneutral start safety switch is provided at the base of the drive clutch lever. This means that the pumps must be dis- engaged before the engine will crank.

Aug. 84 Utho in U.S.A.

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