The Kobelco CKE800-1F is an 80-ton hydraulic crawler crane designed for heavy construction, high-rise lifting, industrial erection and material handling. It combines a 54.9 m maximum crane boom, fixed jib combinations up to 42.7 m + 18.3 m, high-speed 120 m/min winches, 3 variable-displacement main pumps, self-removal counterweight handling and a wide operator cab with LMI display.
Detailed technical specifications for Kobelco CKE800-1F Hydraulic Crawler Crane
Daily pre-operation checks · Planned inspections by operating hours · Warning alerts and immediate actions — covering the Hino J08E-TM engine, crawler undercarriage, 415 L fuel system, 440 L hydraulic tank, winches, 22 mm hoist ropes, lifting structure and safety controls.
Complete before engine start, after any crane configuration change and before the first lift. Remove the crane from service when a defect affects load control, brakes, ropes, structure, hydraulics, safety devices or ground stability.
Record serial number and hourmeter; confirm boom, jib and counterweight configuration, load chart, open defects, display self-check and maintenance status.
Act if: configuration, display status or load data is incorrect — do not lift until corrected.
Inspect bearing condition, mats or cribbing, crawler extension and locks, and verify the crane is level.
Act if: settlement, washout, voids, damaged mats or abnormal tilt is present — stop and stabilise the setup.
On level ground, check engine oil, coolant only when cool, belts, intake, exhaust, leaks and radiator/oil-cooler blockage.
Act if: fluid is low or contaminated, a belt is damaged, leakage is active or airflow is blocked — correct before starting.
Check the 415 L tank level and leakage; drain accumulated water from the fuel-water separator using the correct procedure.
Act if: fuel is contaminated, leakage is active or the water warning recurs — stop and investigate.
Check oil at the specified machine condition and level. Inspect tank, pumps, hoses, tubes, fittings, cylinders, cooler and travel motors.
Act if: leakage, abrasion, swelling, heat damage or contaminated oil is found — isolate and repair before operation.
Test main and auxiliary winches for smooth raise/lower, neutral hold and brake response without shock.
Act if: load drift, delayed response, shock, heat or unusual odour occurs — lower safely and remove from service.
Inspect accessible main and auxiliary 22 mm ropes and the boom-hoist rope for broken wires, diameter loss, corrosion, heat damage, kinks, crushing, bird-caging and poor spooling.
Act if: any discard condition or termination defect is found — stop lifting and quarantine the rope.
Check rope seating, fleet angle, drum flanges, dead-end anchorage, guards and sheave groove/bearing condition.
Act if: rope rides or crosses, a flange is damaged or a sheave is seized — stop the affected function.
Inspect hook body, throat, twist, latch, swivel, pins, nuts, sheaves and identification.
Act if: cracked, distorted, unmarked or insecure — quarantine the component.
Inspect chords, lacings, welds, connectors, pins, retainers, pendant system and boom stops.
Act if: a crack, bend, missing retainer, elongated hole, corrosion loss or impact damage is found — remove from service.
Test swing, brake/lock and warning; inspect the bearing area and mounting interface for loose hardware, grease leakage, noise or movement.
Act if: braking is abnormal, hardware is loose or movement/noise is excessive — stop and inspect.
Inspect 800 mm shoes, bolts, pins, links, sprockets, idlers, final drives and guards; check track sag/tension correctly.
Act if: loose, cracked, leaking or abnormally worn — repair before travel or lifting. Sealed rollers are not routine grease points.
Test rated-capacity indication, boom angle/radius display, over-hoist device, emergency stop, horn, warnings and fitted cameras or mirrors.
Act if: a device is bypassed, failed or uncalibrated — no lifting is permitted.
Confirm controls return to neutral; inspect pedals, locks, access, extinguisher and communication equipment. After warm-up, check for leaks, noise, smell, overheating or debris.
Act if: a control, brake or access defect exists, or leakage/overheating is found — isolate and correct the cause.
Complete every lower-interval check at each higher interval. These hour bands are inspection checkpoints: change fluids, filters, ropes or components only when the applicable maintenance indication, condition result or approved service limit requires it.
Hourmeter, configuration and defects
Record status and confirm the display self-check.
Ground, crawlers and level
Confirm stable bearing and locked crawler position.
Engine, fluids and leaks
Check engine, fuel, hydraulics and undercarriage.
Ropes, structure, brakes and safety
Inspect and function-test before the first lift.
Radiator and hydraulic cooler
Clean externally without bending fins.
Battery, clamps and guards
Inspect terminals, hose clamps and access hardware.
Rope cleaning and lubrication
Clean/lubricate when surface condition requires; do not hide broken wires.
Drums, sheaves, pins and retainers
Inspect spooling, anchorage, grooves, bearings and visible fasteners.
Rope diameter and wire condition
Measure diameter; map broken wires, wear and corrosion.
Hook geometry and blocks
Measure throat/twist; check pins, nuts, guards and sheave grooves.
Hoist, swing and travel brakes
Test holding and controlled release under an approved no-load/light-test condition.
Acceptance
Stop for drift, delay, shock, local heat or unusual odour.
Service status and records
Review engine maintenance indication and service history.
Oil, fuel and air elements
Service only when due, using exact approved specifications and parts.
Cooling and electrical
Clean coolers; check charge, batteries, harnesses, grounds, lights and warnings.
Hydraulic oil and filter status
Sample from the clean point; review cleanliness, water, wear and restriction indication.
Swing, winch and final-drive oils
Check levels and leakage at the correct machine condition; never mix oils.
Load path and moving systems
Detailed ropes, sheaves, hooks, boom, gantry, crawlers, swing interface, winches and brakes.
Hoses and safety devices
Inspect all accessible lines and validate safety functions.
Operating trends
Record temperatures, pressures, function behaviour, brake drift and display status.
Oil and coolant condition
Review analysis trends and due status before any change.
Engine condition
Test blow-by trend, oil pressure, coolant, charging and starting; inspect mounts, turbo and fuel system.
Hydraulic performance
Test at designated ports with calibrated equipment; 31.9 MPa is a maximum, not an adjustment target.
Winches and wet brakes
Test hold/release, bearings, leakage, oil condition, heat and noise.
Swing free play and interface
Measure free play/backlash; inspect bolts, seal, grease, reduction, motor, brake and lock.
Ropes, boom, gantry and pendants
Map rope condition and perform detailed structural inspection; arrange targeted NDT for suspect areas.
Crawler wear and final drives
Measure shoes, links, pins, bushings, sprockets, idlers and rollers; inspect leakage.
Capacity indication and limits
Verify boom angle/radius input, over-hoist limit and cut-outs in the current configuration.
Measured release record
Record instruments, values, samples, parts, defects and competent-person release.
Engine diagnostics
Test balance/compression when trends warrant; inspect turbo and cooling integrity.
Oil programme
Sample engine, hydraulic, winch, swing and final-drive oils before draining; review contamination and wear.
Pumps, motors and lines
Measure pressure, flow, case drain and temperature; inspect every hose and tube.
Winch gear trains
Sample oil; inspect plugs/screens; test play, backlash, brake hold and cooling.
Swing bearing and reduction
Measure axial/radial movement and gear backlash; inspect lubrication and bolt condition.
Ropes and end fittings
Detailed qualified examination; replace only at discard condition, after shock load, or with unacceptable history.
Hooks, blocks and sheaves
Measure geometry, pins, bores, grooves and bearing play; apply NDT where findings require.
Boom, jib and gantry
Engineering visual inspection and targeted MT/PT/UT based on history, damage and corrosion.
Crawler wear and alignment
Measure components and frame alignment; inspect tensioning and final-drive performance.
Electrical and safety controls
Inspect harnesses, grounds, sensors, limits and display; record faults and validate interlocks.
Functional test and release
After critical repair, test under an approved lift plan and close all defects before release.
RED: stop crane operation, secure the load and shut down when safe. AMBER: stop the lift cycle and correct the condition before continuing. Record the alert, hourmeter and corrective action.
The current load and radius have reached the stop condition for the crane configuration.
Immediate action: stop hoist-up and radius-increasing motion. Stabilise and lower using the permitted direction; verify load, radius and configuration.
Risk if ignored: tip-over, structural failure, dropped load or fatal injury.
The hook block or overhaul ball is approaching the boom-head limit, or the device failed its test.
Immediate action: stop and lower the hook. Inspect the switch, weight, chain/cable and circuit; never bypass the device.
Risk if ignored: rope or boom-head damage and dropped load.
Hino J08E-TM lubrication pressure is below the safe range or remains on after start.
Immediate action: once the load is safe, shut down. Check oil level/leakage and test pressure before restart.
Risk if ignored: bearing or turbo damage and engine seizure.
Coolant is low, heat exchangers are blocked, or a fan, belt or internal fault is reducing cooling.
Immediate action: stop lifting, idle only as permitted, then shut down and cool. Never open a hot cap.
Risk if ignored: cylinder-head/turbo damage, fire or sudden shutdown.
Rapid oil or pressure loss, spray, a burst hose or uncontrolled movement is present.
Immediate action: secure/lower the load if controllable, isolate and shut down. Depressurise before repair and never check leaks by hand.
Risk if ignored: injection injury, fire or loss of load/motion control.
A hoist load will not hold, or swing/travel brake response is abnormal.
Immediate action: stop motion and lower the load safely without shock. Isolate and inspect the brake/control circuit.
Risk if ignored: uncontrolled load, boom or house movement.
A crack-like indication, bent member, loose/missing pin or retainer is present in the load path.
Immediate action: remove from service, barricade and obtain engineering assessment and required NDT. Do not field-weld or substitute hardware.
Risk if ignored: progressive collapse or component separation.
Broken wires, diameter loss, kink, crushing, bird-cage, displaced core, heat damage or termination defect is beyond safe condition.
Immediate action: stop lifting, unload safely and quarantine the rope for qualified assessment and traceable replacement.
Risk if ignored: rope failure and dropped load.
The multi-display reports an engine or machine maintenance item due.
Immediate action: record the hourmeter/message and complete the correct task before the approved grace limit; reset only after documentation.
Risk if ignored: accelerated wear, contamination and lost maintenance traceability.
Separator water or fuel, air or hydraulic filter restriction is indicated.
Immediate action: stop the cycle; drain the separator or service the exact element cleanly and investigate recurrence.
Risk if ignored: power loss, injector/pump wear or hydraulic cavitation.
Low level, cooler blockage, wrong oil, internal leakage or sustained duty is overheating the system.
Immediate action: stop heavy cycling, place the load safe and diagnose level, cooler airflow and leakage.
Risk if ignored: seal hardening, degraded oil and pump/motor wear.
Grinding, clunking, vibration, local heat or metallic debris suggests gear, bearing or brake deterioration.
Immediate action: stop the affected function, secure the crane and inspect lubricant and mechanical clearances before the next lift.
Risk if ignored: gear or bearing failure and loss of control.
Everything you need to know about the Kobelco CKE800-1F Hydraulic Crawler Crane