Description

Ihimer CCH1200 Technical Manual – OEM Factory Specs for the Fully Hydraulic Crawler Crane

Working on a 120-metric-ton crawler crane without the right specs is how you snap a boom or blow a hydraulic line. The Ihimer CCH1200 Technical Manual gives you the factory numbers – swing speed, travel speed, gradeability, engine details – straight from IHI Construction Machinery. 16 pages of genuine OEM data, not aftermarket guesswork. You don’t guess on something that lifts 120 tons.

Inside the 16 pages you’ll find swing speed at 2.2 rpm, travel speed 1.5/1.0 km/h (0.93/0.62 mph), and gradeability 30% (approx. 16.7°). The engine is variable displacement axial piston type. Two-stage planetary gear reduction drives the hoist. Tandem drums run independently – each with its own hydraulic motor and Lebus grooved drum. Page 2 shows the load chart with a clear warning: main and jib hook blocks may not be operated simultaneously. That kind of detail prevents overloads.

CCH1200 Technical Manual: Engine and Performance Specs

These specs aren’t for decoration – they’re what you need to diagnose a slow swing or weak travel. The manual lists the load hoist system: hydraulic motor driving two-stage planetary gear plus single stage spur gear. Brake types: internal expanding band, external contracting, and ratchet lock. Hydraulic pump configuration: variable displacement axial piston x2 plus gear pump x3. The boom hoist uses an axial piston motor with one-stage planetary gear and one-stage spur gear, plus a wet multi-disk brake that’s spring-loaded and hydraulically released. If you’re chasing a drift issue, that brake system is the first place to look.

What the 16-Page Manual Covers

Page 3 includes general dimensions with the basic 18m boom – center line of rotation, tail swing radius 4900mm, overall length 7880mm, height 3675mm. The specification table runs through all subsystems: performance, travel, engine, load hoist, boom hoist. Standard equipment fills the rest of the pages, from safety devices to operator cab accessories. You also get notes like the 82° non-resetable 2nd boom stop device and the “clutch engage pin on main and auxiliary winch.” That’s the kind of detail you only get from an OEM print. For more options, compare with the Ihimer CCH700 Technical Manual – Factory Specs & OEM Data and IHI CCH2000 Fully Hydraulic Crawler Crane Specs for larger models.

Standard Equipment: Factory-Installed Items

If you’re evaluating a used CCH1200, this manual’s standard equipment list is your checklist. It includes the instrument cluster: engine tachometer/hour meter, hydraulic oil pressure gauge, fuel level gauge, coolant thermo indicator, oil pressure indicator, hydraulic oil thermo indicator. Lighting: two work lights (24V x 80W), one room light. Safety devices: automatic stops for hook and boom overwinding, telescopic boom limit stop, swing lock, main and auxiliary drum lock, boom hoist drum lock, and the 82° non-resetable 2nd boom stop. Also safety valve for hydraulic circuit and counter balance valve. Non-safety items: sunvisor, sun shade, reclining seat, floor mat, jack device for dismantling, lateral cylinders for crawler dismantling, steps, radio, cigarette lighter, ash tray, large rear view mirrors, signal horn, electric fuel filling pump, swing and travel warning flashers, high A-frame erecting device, low-noise cab, bronze tinted glass, wire mesh boom workway, foot rest, electric and foot-pedal engine throttle, automatic engine deceleration, ultra low speed control, hydraulic assist brake for main and aux winch, winch mode selector, rope guide roller, plug socket, loud speaker, emergency engine stop switch, OK monitor. That’s 50+ items – if any are missing on your machine, you know what the factory expected. The IHI CCH1500-5 Fully Hydraulic Crawler Crane Specs covers the 150-ton variant with similar equipment.

Why OEM Documentation Beats Aftermarket for Heavy Equipment

Aftermarket crane manuals often compress or omit critical specs like pump displacement and reduction ratios. This is a direct OEM print from Ihimer – no third-party reprint, no copy errors. The hydraulic circuit details come straight from the factory. Compare that to the guesswork of trying to adapt specs from a Manual Transmission service guide – not even close. The boom hoist uses a one-stage planetary gear plus spur gear, not a Manual Transmission style – and the manual spells out the ratios. You need that precision for ordering replacement parts or setting up hydraulic pressures.

Safety Devices: Automatic Stops and Drum Locks

Crane safety inspections require verifying each factory-installed device. This manual lists them all: automatic stop for hook overwinding, automatic stop for boom overwinding, telescopic boom limit stop, swing lock, main and auxiliary drum lock, boom hoist drum lock, 2nd boom stop device (82° non-resetable), clutch engage pin on main and auxiliary winch. Also hydraulic circuit safety valve, counter balance valve, and control lever locking device. For gear-driven auxiliary systems, the drum lock and brake specs are on page 3. Missing any of these on the machine means unsafe operation.

Is this manual useful for troubleshooting hydraulic issues?

Yes, because it contains the hydraulic pump specs – variable displacement axial piston type, gear pump details – and the reduction gear configurations. However, this is a technical manual, not a service manual. It won’t tell you how to rebuild the pump step-by-step. For diagnostics, the specs help you compare measured performance against factory numbers. For example, if swing speed is below 2.2 rpm, you can check pump displacement or motor efficiency. The manual’s page 2 load chart also helps verify capacity.

Does the manual include torque specifications?

No. This manual focuses on machine specifications and standard equipment. Torque values would be in the service manual.

If you need the factory specs on your bench, don’t waste time with photocopies. Access the Factory Manual directly from AutoRepairManuals – the largest collection of OEM shop manuals in North America.