GHH MK-A20.1 Dump Truck Operating Instructions Manual – Vehicle 3089/16

Description

GHH MK-A20.1 Dump Truck Operating Instructions Manual

This is the full English-language Operating Instructions book for the GHH Fahrzeuge MK-A20.1 dump truck, issued for Vehicle No. 3089/16. The manual is organised into four main sections — Introduction, Operation, Maintenance, and System Drawings — and walks the operator and maintenance technician through every routine and service procedure required to keep this 20-tonne underground dumper working safely and productively.

Written for the specific machine identified on the vehicle nameplate rather than a generic model family, this GHH MK-A20.1 operating instructions manual is the reference the driver and workshop need before start-up, throughout every shift, and across the entire maintenance cycle of the machine.

File Details

• Manual type: Operating Instructions
• Brand / Manufacturer: GHH Fahrzeuge GmbH
• Model: MK-A20.1 Dump Truck
• Vehicle covered: Vehicle No. 3089/16
• Language: English
• File format: PDF
• Pages: 158
• Sections: 1 Introduction, 2 Operation, 3 Maintenance, 4 System Drawings

Chapters Covered

• Section 1 — Introduction
  • How to use the operating instructions, page-numbering and code conventions
  • Record of revisions
  • Preface
  • Warranty conditions for mining and tunnelling vehicles, airport equipment
  • Vehicle identification and nameplates
  • Technical data — main dimensions, weights, tramming capacities, engine, travel drive, wheels and tyres, brakes, swivel hinge, steering, hydraulics, electrical, lighting, filling volumes, sound-pressure level
  • Concise description of the dumper
• Section 2 — Operation
  • Safety instructions for operation of GHH vehicles (general, combustion engine, mining and tunnelling, dumpers)
  • Safety and functional marking drawings
  • Driver’s seat adjustment
  • Operating elements and control instruments (MFD multi-function display, signal lamps, switches)
  • Daily and post-operation checks
  • Engine starting and engine switch-off
  • Tramming operation — start-up, changing direction, steering, torque converter and power transmission hints
  • Driving with engaged lock-up
  • Downhill driving in converter mode, lock-up mode, and with lock-up plus exhaust flap brake
  • Activating and deactivating the exhaust flap brake
  • Towing the vehicle
  • Dumping — control of operating equipment, loading and emptying of body
  • Winter operation — engine, cooling system, air intake, fuel system, axle gear, hydraulic system, electrical system
  • Shutdown of vehicle and restart after shutdown
  • Loading, attachment points, transportation
• Section 3 — Maintenance
  • Safety instructions for maintenance and servicing
  • Regular and irregular maintenance and servicing
  • List of lubricants and operating agents
  • Checklists by hour interval (daily, 150/300/450/750 Bh, 600/1200/1800/2400 Bh)
  • Measuring-point plan and location of control valves
  • Slewing rim bearing clearance check
  • Maintenance work records
  • Engine operating instructions
  • Air intake system, exhaust gas system, exhaust scrubber
  • Fuel system
  • Speed adjustment and diaphragm accumulator
  • Torque converter and power shift transmission
  • Drivelines and lubrication
  • Axles — planetary and differential gear oil changes
  • Brake system — bleeding, diaphragm accumulators, pressure checks, disc wear, parking brake adjustment, spring brake cylinder release
  • Brake system description
  • Hydraulic system (steering and dump/hoist)
  • Steering and operating hydraulic system description
  • Converter-transmission hydraulic system description
  • Torque converter operation
  • Electrical equipment and battery
  • Fire extinguishing system
  • Fault-finding table (brake, hydraulic, converter-transmission)
  • Appendix — gradeability diagrams
• Section 4 — System Drawings
  • Service brake drawing 909-1-058915
  • Engine brake drawing 909-2-055102
  • Converter-transmission hydraulic system drawing 909-1-053502
  • Steering-operating hydraulic system drawing 909-1-057563
  • Electrical equipment circuit diagrams 909-3-053391D (sheets 1–9)

Across its four sections the manual moves from the mandatory pre-start safety reading through everyday tramming and dumping technique, then into the maintenance workflow the workshop will follow for the life of the machine, and finally into the hydraulic, brake and electrical schematic drawings a technician needs for fault isolation and repair. It is the single operator-and-workshop reference for this MK-A20.1.

What This MK-A20.1 Operating Instructions Manual Lets You Do

This GHH MK-A20.1 dump truck operating instructions manual covers the complete daily work cycle of the machine — pre-start checks, engine starting from cold or warm, gear selection in converter or lock-up mode, correct downhill driving technique in each mode, exhaust flap brake use, dumping and body lowering, and safe shutdown or long-term storage. Every operating step is tied to the safety warnings the manufacturer expects the operator to know before he sits in the driver’s seat.

For the workshop, the maintenance section turns the manual into a working service guide: hour-based checklists for every interval from daily through 2400 Bh, filling volumes for engine, hydraulics, converter/transmission, axles and exhaust scrubber, oil-change and strainer-cleaning procedures for the torque converter and power shift transmission, brake bleeding and accumulator pre-charge checks, parking brake adjustment, filter element replacement in both the return filter and in-line filter, driveline lubrication points and the fault-finding tables for the brake, hydraulic and converter-transmission systems.

The system drawings in Section 4 complete the picture. With the service brake, engine brake, converter-transmission, steering/operating hydraulic and full electrical circuit diagrams, a technician can trace pressures at every measuring point, follow the oil path through every circuit, and check the electrical wiring for the machine down to terminal level.

Why Correct Procedures and Specifications Matter

The MK-A20.1 is an underground mining dumper with a 20,000 kg payload, multi-disc brakes on all four wheels, a spring-applied parking brake acting through the drivelines, a hydraulically released spring brake cylinder and a pressure-charged hydraulic brake system with diaphragm accumulators. Getting brake bleeding, accumulator pre-charge, release pressure or cooling flow wrong on this machine is a safety issue, not a maintenance preference — and the manual is written around that reality. The same applies to torque converter oil level, converter oil temperature limits, lock-up engagement speed and downhill driving gear selection: each has a stated operating band and each has consequences if ignored.

Using the printed values from this operating instructions manual keeps the machine inside the manufacturer’s specification, protecting the brake system, the converter-transmission circuit, the hydraulic pump and the diesel engine from the failures documented in the fault-finding tables.

Delivery

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The GHH MK-A20.1 operating instructions manual is supplied as an instant-download PDF. There is nothing to ship and nothing to wait for — checkout completes, the file is yours, and it can be read on any laptop, tablet or phone in the workshop, printed on paper and kept in the driver’s cab, or stored on a USB stick alongside the spare-parts list. Keep a copy in the cab for the operator and a copy in the workshop for the maintenance team so this Vehicle 3089/16 manual is always where it is needed.