Liebherr CBW 20(30)/26 ST Cargo Deck Crane Instruction and Maintenance Manual Volume 1 – PDF

Description

The Liebherr CBW 20(30)/26 ST Cargo Deck Crane Instruction and Maintenance Manual Volume 1 is the operating and service documentation issued by Liebherr-Werk Nenzing for the CBW 20(30)/26 ST cargo deck crane, covering orders 160 052 and 162 053. This volume deals with safe operation and routine maintenance, explaining how the crane’s hydraulic, electrical and mechanical assemblies work together and what has to be checked, greased, adjusted and replaced to keep the machine in service. It is written for trained operators and service personnel working on this specific deck crane.

File Details

• Manual type: Instruction and Maintenance Manual, Volume 1
• Brand: Liebherr
• Model: CBW 20(30)/26 ST cargo deck crane
• Order numbers: 160 052, 162 053
• Language: English
• Page count: 104 pages
• File format: PDF

Chapters Covered

• 1. Preface – To the Owner; General Information; Crane Serial Number; Spare Parts and Repairs; Preservation; Welding Operations; Crane Application and Operation; Conversion Table; Standard Hand Signals for Controlling Crane Operations; General Hints and Advice for Crane Operation; General Safety Rules; Explanation of Safety Signs; Liebherr World-Wide Service Organization
• 2. General Description – Arrangement of the Crane; Slewing Column; Jib; Technical Description covering hoisting system, luffing system, slewing system, power regulation, crane control, heating, cooling, operator’s cabin, safety devices, emergency descent and load diagram; Layout of the Operator’s Cabin; Explanation of the Control Stand; Switch Unit X20; Controls on the Switch Cabinets; Preparations for Crane Operation; Operation of Cable Reel / Motor Grab; Crane Operation
• 3. Maintenance – General; Maintenance Intervals; Special Safety Regulations; Fire and Explosion Prevention; Handling and Disposal Instructions; Maintenance of Hydraulic System; Filter Elements; Hydraulic Fluid; Hydraulic Lines and Hoses; Pressure Accumulators; Liebherr Condition Monitoring; Gearboxes; Multiple Disc Brakes; Instructions for Use of Crane Ropes; Replacement of Ropes; Rope Pulleys; Roller Slewing Ring; Electrical System; Maintenance Instructions for Slip Ring Unit; Lubrication and Greasing Diagram; Maintenance Lists; Service Spare-Parts and Standard Tools; Table of Lubricants

Together these chapters take the reader from the crane’s general arrangement – base column, roller slewing ring, slewing column and jib – through the hydraulically driven hoist, luff and slew motions, and on into the full maintenance regime. The general description chapter identifies each major component and its function, explains the joystick control stand and switch unit X20 in detail, and walks through start-up from parking position, work-break shutdown, restart after a break, and final shutdown ready for sea. The maintenance chapter then supplies the procedures, lubricant types, filter references and inspection intervals the crane needs, including the oil sampling programme used for Liebherr condition monitoring and the report symbols that tell you whether to keep the oil, resample, or change it.

Safety Content and Operating Rules

Substantial space is given to safety. The manual reproduces the standard hand signals for controlling crane operations, illustrates the prohibition, warning, mandatory and rescue signs used on the crane, and lists the general safety rules that apply before, during and after a lift. Capacities for each operating situation must be taken from the load diagram and the capacity charts, and the load diagram page shows the 2-fall operation envelope for the CBW 20(30)/26 ST with container and grab curves plotted across the working radius.

The emergency descent procedure is documented step by step, covering how to unlock and push out the emergency window, hang the rescue device, don the harness, climb out and regulate descent speed with the incoming rope and brake lever. Emergency stop button locations at switch unit X20, switch cabinet X1 and the ascent ladder are identified, as are the limit switch functions on the hoist and luffing gear, the hose fracture safety valves at the luffing cylinders, and the overpressure protection built into the hydraulic circuit. The manual also sets a firm operating limit: crane operation must be stopped at wind speeds above 20 m/sec.

Maintenance Schedules and Service Intervals

The maintenance lists are organised by operating hours, giving the owner a clear schedule to follow:

• Every 10 hrs / daily – gear rim of main slewing bearing, ropes, hydraulic system leak checks and oil level, control panels and indicator functions, emergency stops, limit switches on hoisting and luffing gear
• Every 50 hrs / weekly – greasing lines and points, hoist winch gear oil level and counter-bearing greasing, slewing gearbox oil levels, pressure and temperature sensor cables and plugs, rope condition and rope fix points
• First 100 hrs / after 2 weeks – replacement of feed pressure filter, oil cooler filter and return flow filter elements
• First 500 hrs / after 3 months – bolt and bracket tightness, complete regreasing, hydraulic oil sample and change with tank cleaning, pressure adjustment checks, gearbox oil changes with preheated flushing oil, rope and pulley inspection, hook block greasing, slip ring screw and brush checks, function test of all motions
• Every 500 hrs / every 3 months – steel structure and weld inspection, cable and sensor connections, gear oil levels and air breathers, greasing line tightness, filter element replacement, lighting check, control panel check
• First 1000 hrs / after 6 months – oil samples from all gearboxes, switch cabinet X1 and junction box terminal checks, control panel function check
• Every 2000 hrs / every year – roller slewing ring bolt torque check, hydraulic motor tooth profile wear, hydraulic oil condition, air breather filter replacement, cable and sensor checks, pressure accumulator check or replacement, rope fatigue inspection

Filling quantities are stated for the main systems – approximately 750 litres for the hydraulic oil tank, 7.5 litres for the hoisting winch and 3 x 11.2 litres for the three slewing gearboxes – and the table of lubricants lists approved oil and grease types by specification and supplier so the correct product can be selected without guesswork. Pressure accumulators are flagged for check or replacement every two years, and hydraulic hoses carry a maximum service life of six years from the Liebherr label date.

What This Manual Enables You To Do

With the Liebherr CBW 20(30)/26 ST Cargo Deck Crane Instruction and Maintenance Manual Volume 1 to hand, an operator or service technician can run the crane correctly, understand why each safety device exists, and carry out the full scheduled maintenance programme without guessing at intervals, lubricants or filter references. The procedures for rope replacement and reeving, hydraulic filter exchange, pressure accumulator handling, gearbox oil changes, slip ring maintenance, roller slewing ring greasing and rope inspection are all covered with the tightening torques and limits that matter, including the 210 Nm rope fix point bolt torque on the M16 8.8 bolt and the 637 kN pretension load for the slewing ring bolts.

IMAGES PREVIEW

The document is delivered as an instant PDF download – no shipping, no waiting, and it can be opened on a laptop, tablet or phone in the workshop or on deck, and printed for a binder copy. Whether you are commissioning the crane, planning a maintenance window, or tracing a fault in the hoist, luff or slew circuit, this is the reference the crane was built around.