MacGREGOR GL6019 GL5521 GL5023 GL4526-2 Deck Crane Manual – Hydraulic Service & Repair PDF

Description

MacGREGOR GL6019/5521/5023/4526-2 Hydraulic Deck Crane Manual

This is the complete MacGREGOR instruction, operation, maintenance and service manual for the GL-2 and GL-3 series hydraulic deck cranes, issued under Project No. 2/0709102LMW and valid for crane serial numbers 62508550 and 62508551. It covers the GL6019, GL5521, GL5023 and GL4526-2 crane variants, documenting every system on board — from the hoisting, luffing and slewing circuits to the CC3000 electronic crane control system, the electrical safety functions and the complete spare-parts breakdowns. If you operate, maintain or repair one of these MacGREGOR hydraulic deck cranes, this manual is the technical reference the crane was built around.

File Details

• Manual type: Instruction, operation, maintenance & service manual
• Brand: MacGREGOR / Hägglunds Cranes (Cargotec Sweden AB)
• Crane family: GL-2 / GL-3 hydraulic deck cranes
• Covered models: GL6019, GL5521, GL5023, GL4526-2
• Project No.: 2/0709102LMW
• Date: 2009-07-08
• Valid for: 62508550, 62508551
• Language: English
• Page count: 586 pages
• File format: PDF

Chapters Covered

• 1 — General
• 2 — Technical Description
• 3 — Function
• 4 — Operation
• 5 — Maintenance
• 6 — Service
• 7 — Extra Equipment
• 9 — Spare Parts

Chapter 1 — General

Safety instructions for the GL-2 and GL-3 cranes, the full risk-classification system (danger, warning, caution and notice signs), the general cleanliness rules for working on hydraulic systems, conversion factors, and the complete library of hydraulic and electrical symbols used throughout the schematic diagrams. This is the chapter that tells you what every symbol on a circuit drawing actually represents before you start tracing a fault.

Chapter 2 — Technical Description

The crane specification tables and the design description of the GL-2 and GL-3 cranes. Hoisting capacities, jib outreach limits, hoisting and luffing speeds, slewing speeds, main electric motor ratings, feed pump and control circuit data, gearbox ratio, hydraulic pump and motor displacements, wire rope sizes and oil capacities. Also includes the illustrated cutaway of the crane showing the main electric motor, pump unit, hoisting and luffing winches, slewing gear, jib, operator’s cabin and oil tank in their actual positions.

Chapter 3 — Function

How the hydraulic and electrical systems actually work. The hoisting, luffing and slewing circuits are broken down valve by valve, with brake-release logic, high-speed/low-speed shifting, overload response and safety cut-offs. The crane control system CC3000 is covered in full — MC and CC cards, joystick inputs, parameter memory, error diagnostics and the CAN/RS485 communication layout. Electrical start/stop sequences and the thermostatic ventilation fan are also explained.

Chapter 4 — Operation

Crew checklists, the operating instruction, remote control box operation (radio and cable), the start-stop procedure, MachHeavyVisor display, in-cabin controls and indicators, emergency escape procedures using the escape line or rope ladder, parking and sea stowing, and handling hatches by deck crane. This is the chapter a crane operator is expected to read before taking the crane into service.

Chapter 5 — Maintenance

The full maintenance chart with daily, monthly, 200-hour, 500-hour, 1000-hour, 2000-hour and five-year intervals. Inspection of stressed components and structures, the lubricating chart and lubricating instructions, filter service and replacement, hydraulic oil tank procedures, oil sampling to verify cleanliness, and the recommended lubricants and greases for every part of the crane including the slewing gear, winches, wire ropes and jib bearing.

Chapter 6 — Service

The largest chapter of the manual. Trouble-shooting charts for overheating, pumps, hydraulic motors and brakes; slewing gearset service and backlash setting; winch assembly and oil-change procedures; wire rope handling, replacement and inspection; sheave wear limits; hydraulic hose inspection and replacement intervals; hydraulic piston accumulator charging; tightening torques for studs, screws and hydraulic couplings; the service door procedure; slack wire switch function testing; limit switch adjustment; slip-ring unit removal and maintenance; and the complete CC3000 troubleshooting guide with error-code tables. Emergency lowering using a hand pump is also documented in full.

Chapter 7 — Extra Equipment

MacHeavyvisor release 3.1 — the logging and display program that runs on the crane cabin computer — plus the CC Pilot XS display user manual covering installation, connectors, startup and fault finding.

Chapter 9 — Spare Parts

Illustrated parts breakdowns (IPD) for the hoisting and luffing winches, slewing gear assemblies, hydraulic motors, pump unit, oil cooler, oil tank, crane house, jib, cab, lifting block, slewing bearing, hydraulic valves, filters, electrical components and extra equipment. Both an alphabetical and a numerical spare-part index are included, along with the recommended procedure and form for ordering parts from MacGREGOR.

Crane Systems and Circuits Documented

The manual covers all three of the crane’s closed hydraulic work circuits in detail. The hoisting circuit uses two 125 cm³/rev variable-displacement pumps driving two Vg 160–0 cm³/rev hydraulic motors through a planetary gearbox. The luffing circuit uses a 125 cm³/rev pump driving a 106.7 cm³/rev motor. The slewing circuit uses a 125 cm³/rev pump and three 56.1 cm³/rev motors. Feed and control pressure are supplied by a separate 49.1 cm³/rev screw pump submerged in the 560-litre oil tank. The main electric motor is rated 184 kW continuous / 294 kW at S6 15% duty on 440 V / 60 Hz, driving the pumps through a three-pump drive with a ratio of i = 0.692.

Because this manual was written for the whole GL-2 and GL-3 family, the load-area chart shows the four lifting capacities that the four model numbers correspond to: 60 t at 4–19 m outreach, 55 t at 4–21 m, 50 t at 4–23 m and 45 t at 2.5–26 m. Hoisting is 15 m/min in low speed and 25 m/min in high speed, luffing takes approximately 22–25 seconds from maximum to minimum radius, and slewing runs at 0.7–0.75 rev/min. Wire rope sizes are 38 mm × 230 m for the hoisting winch and 32 mm × 171 m for the luffing winch, both non-rotating lang lay galvanised and oiled.

Who This Manual Is For

This MacGREGOR deck crane manual is written for the ship’s crew, the responsible engineering officer, the shore-based service engineer and the workshop technician who keeps a GL-2 or GL-3 crane working. The operating chapters assume no formal engineering education — they simply require the reader to work through the manual. The service and repair chapters, on the other hand, are aimed at qualified hydraulic, mechanical and electrical personnel who are familiar with the risks of high-pressure oil, live 440 V equipment and heavy suspended loads.

It is equally useful as a reference for classification surveys, as a training aid for new crane operators, and as the documentation source when you need the correct part number for a valve, seal, hydraulic motor or sheave before placing a spares order.

Why This MacGREGOR GL-2 / GL-3 Manual Matters

Deck crane work is unforgiving. A mis-set pressure cut-off valve, a worn brake disc that has not been measured, a slack wire switch that has been bypassed, or a joystick that has not been recalibrated after an encoder change can all turn a routine lift into a dropped load. The GL6019 GL5521 GL5023 GL4526-2 service manual gives you the exact pressures, torque figures, clearance limits, oil grades, cam angles and error codes that MacGREGOR specifies for these cranes — not generic advice from a similar machine.

Inside you will find everything needed to run diagnostics through the CC3000 card display, to trace a fault in the hoisting or luffing circuit using the hydraulic schematics, to replace a wire rope without losing the limit switch settings, to charge the piston accumulators, to set the slewing gear backlash, and to look up the correct part number from the illustrated spare-parts lists.

IMAGES PREVIEW

Delivered as an instant PDF download — no shipping, no waiting, no physical binder to lose on deck. Open it on the bridge laptop, the engine room PC, a workshop tablet or a phone, and print only the pages you need for the job in front of you. The full 586-page manual is yours to keep, search and reference for the life of the crane. Order now and have the complete MacGREGOR GL-2 / GL-3 hydraulic deck crane documentation in your hands within minutes.