Gehl 418T Wheel, Руководство оператора

Страница: 14 / 192

AP0902
1–3
Introduction
1.3 Brief description
The wheel loader model 418T is a self-propelled work machine.
This machine is a versatile and powerful helper for moving earth, gravel and debris on con-
struction sites and elsewhere. The wide range of attachments accounts for the numerous
applications of the machine: as a fork lift, a snow plow, a spreader for sand, salt etc., a
sweeper or a tree replanter. See part 1.4 Applications for further applications. Fit the
machine with the respective safety devices when using it as a lifting machine (see “Appli-
cations with lifting accessories” in Part 2 Safety Instructions).
The main components of the wheel loader model 418T are:
•
ROPS tested operator’s cab
•
Water-cooled four cylinder PERKINS diesel engine, 58 hp (43.1 kW) at 2400 rpm (as
per DIN ISO 9249)
•
Sturdy steel sheet frame in torsion-resistant box-type design
•
Hydrostatic drive with electronic control, inching; 12 mph (20 km/h) max. speed
•
Hydrostatic four-wheel steering with emergency steering features
•
Front and rear planetary axles, rear axle with oscillation
•
Service brake (mechanical or hydrostatic), mechanical disk-type parking brake
•
Telescopic unit with safe load indicator
Hydrostatic drive The diesel engine drives a hydraulic pump, whose oil flow is sent to a hydraulic motor con-
nected to the rear axle. The force of the hydraulic motor is transmitted to the rear axle via
the transfer gearbox. At the same time, the front axle is driven by the cardan shaft, ensur-
ing permanent four wheel drive.
Work hydraulics and hydrostatic four-
wheel steering The diesel engine also drives the joint gear pump for work hydraulics and hydrostatic four-
wheel steering. The oil flow of this pump depends on the diesel engine speed only.
When the machine is in operation, the entire diesel engine output can be transmitted to the
gear pump for work hydraulics and steering. This is made possible by the so-called inching
which responds as soon as the inching brake is used, reducing or cutting off power input of
the drive. Therefore, engine output is fully available for the telescopic unit by pressing the
accelerator pedal and the inching brake pedal at the same time.
Cooling system A combined oil/water cooler (for the diesel engine and the hydraulic oil) is located at the
rear of the machine. The warning lights in the instrument panel 17 ensure constant moni-
toring of the coolant and hydraulic oil temperature. In addition, an audible signal sounds in
the machine cab as soon as there is danger of coolant or hydraulic oil overheating and in
case of low engine oil pressure.