CK1600 Interactive Operator Studio

Chart rating (gross) — Reading the chart…

Limit on total hook load — Chart, attachment & rope

Left for the load Owed Enter hook block, ball & slings

Margin on your planned load — Cannot be completed yet

Live CK1600 Geometry & Rated Capacity Curve

Every row is read from the spec book charts in Unit 126’s profile (PDF p21–p22, notes p20): the Standard arrangement, 116,820 lb counterweight + 22,050 lb carbody weight. Representative, not serial-matched.

Radius: centre of rotation to the centre of the load — it grows when the load is lifted (O&M PDF p18). Wind is taken at the point 60% along the boom (O&M PDF p32).

♦ Diamond: Structural competence limit (*) · ● Circle: Stability limit (75% tipping, Spec Book p20). Dashed purple: parts-of-line rope limit (29,500 lb per part; spec book p6, p20 note 14). Dashed amber: chart minus the mounted attachment. Drawn as steps: between printed radii the lower value applies.

Gross-to-Net Capacity Waterfall (Spec Book PDF p20 Notes 6, 7 & 14)

Left for the load Mounted jib / aux sheave deduction Cut by the rope limit Hook block, ball & slings Over the limit

130–200 ft charts (spec book p22), drawn from the profile

Configure Lift Parameters

Manipulate the configuration and watch the governing rule update live.

1. Main Boom Length (every main boom chart, spec book p21–p22) 100 ft

2. Working Radius (Try an off-chart number like 37 ft) 37 ft

0 ftChart radiiPast the chart

3. Main Hoist Parts of Line (26 mm UNI Rope) 4 parts (118,000 lb)

1 part (29,500 lb)29,500 lb / part (Spec p6)11 parts (320,000 lb)

4. Tip Attachment Mounted on Main Boom Spec Book p20 Note 7

5. Hook Block, Ball & Slings for This Lift, lb Spec Book p20 Note 6

Part of the load: subtracted from the rated load

Unit 126 Hardware Verification Hold (Profile Open Question) Neither Kobelco PDF publishes hook block or ball weights because rigging hardware varies by unit. Furthermore, while the OEM video claims the LMI auto-deducts blocks, the O&M manual and Spec Book Note 6 put the deduction on the operator. Measure the stamped block weight on Unit 126 and always deduct it manually.

6. Planned Freely Suspended Load Weight 88,000 lb

5,000 lbTest net capacity threshold260,000 lb

CK1600 LMI Controller & Interlock Twin

Working assumption: Unit 126 is a CK1600 with the button/menu LMI, not a CK1600G touchscreen — still to be confirmed at the machine (profile open question 2).

KOBELCO LOAD SAFETY DEVICE · MODEL CK1600 (O&M PDF p102) CONFIG: MAIN BOOM · 116.8k CWT + 22.0k CARBODY

LOADING (MOMENT) RATIO BAR 60% · 70% · 80% · 90% (WARN) · 100% (STOP)

The ratio comes from the load on the hook. This twin hangs no load, so it shows no ratio.

Boom Angle (O&M p102) 68.5°

Load (Moment) Ratio — no load

CRANE MODE · NO AUTOMATIC STOP ACTIVE O&M PDF p102

AUTOMATIC STOP DIRECTION MATRIX (O&M PDF p125–126 — Move Immediately Toward Safer Side):

● PERMITTED: Hoist Up

● PERMITTED: Hoist Down (Safe Dir)

● PERMITTED: Boom Raise

● PERMITTED: Boom Lower

Gauge Cluster Fault Code Simulator (O&M PDF p49–p56)

Operate Cab Switches & Proof Tests

Test daily functional checks (O&M p17, p133–136) and fault responses.

1. Function Lock Lever (Left of Seat, O&M p71)

2. Safety Device Proof & Mode Switches (O&M p133–136)

3. Boom Angle (Test 80.0° LMI, 82.0° Foot Switch & 90.0° Backstop) 68.5°

35.0°80.0° LMI · 82.0° Foot (21)90.0° Backstop (60)

4. Boom Hoist Grip Inching Switch (O&M p47)

5. Simulate a Gauge Cluster Fault Code (O&M p54–p56)

Crawler Footprint, Translifter & O&M 4.1 Stability Matrix

Visualize why counterweight combinations, single-track assembly, and ground slope gate what Unit 126 may do.

All-Round 360° Swing ✓ PERMITTED (360°)

Forward Propel (Toward Idler) ✓ PERMITTED (≤3° boom base)

Backward Propel (Toward Motor) ✓ PERMITTED (Firm Ground)

Test Assembly & Ground States

Try removing carbody weight or switching to 1 crawler installed.

1. Undercarriage / Assembly Stage (O&M Ch. 4)

2. Upper Counterweight Installed (O&M p142, p336)

3. Carbody Counterweights (2 × 5,000 kg, O&M p142)

4. Supporting Surface Out-of-Level Slope (O&M p19) 0.2° (0.35% grade)

0.0° (Level)±0.5° Tolerance (O&M p19)1.5°

Brake disk wear indicator 2.8 mm Normal: 2.5–3.0 mm pressed (p251)

Hoist rope removal check NONE FOUND O&M p269 · open question 8

Boom guy line, time in service 1.5 yr Replace at 6 yr (normal crane work)

Rope left on the drum 4 wraps Above the p235 minimum of 3

Brake, Wire Rope, Guy Line & Drum Inspector

Practise reading the inspection criteria in O&M Chapter 6 (Wire Rope, p234–239) and Chapter 7 (Maintenance, p240–331) against readings you enter.

1: drum brake disk wear indicator (O&M p251). 2: broken wires in one lay and diameter loss (O&M p269; open question 8). 3: rope left on the drum (O&M p235; open question 7).

Enter Your Readings

Exercise inputs for practice — not readings from Unit 126.

1. Brake check set-up (O&M p251)

Free fall is an option on this machine (spec book p3); whether Unit 126 has it is open question 13.

2. Indicator protrusion, engine stopped and indicator pressed 2.8 mm

0 mm: replace2.5–3.0 mm: normal4 mm

3. Hoist rope: broken wires in one lay, excluding filler wires 0 broken

0O&M: remove at 10% of the rope’s wires40

4. Most broken wires in any one strand of that lay 0

0ASME text: 6 in one lay or 3 in one strand (open question 8)10

5. Wires in the rope, excluding filler wires — from the rope certificate not entered

The profile records no wire count for the installed rope, so the 10 percent rule is worked only against the count you enter.

6. Diameter reduction from nominal, measured across the crowns 1.0%

0%ASME text: over 5% · O&M p269: over 7%10%

7. What the boom guy line has worked on (O&M p271)

8. Boom guy line, time in service 1.5 yr

0 yrReplace at 2, 4 or 6 yr by duty8 yr

9. Rope left on the drum at the lowest hook position 4 wraps

1p235: at least 3 · p24 item 21: 2 (open question 7)6

Training & Qualification Boundary: Chart values, deductions and limits in this studio are read from Unit 126’s profile, which cites the Kobelco CK1600 Operation & Maintenance Manual (S2GN00003ZE10, applicable from GN03-02001) and the supplied CK1600 spec book; scenario figures are marked as scenario figures. An “open question” number is that item’s place in the profile’s extraction.open_questions list, counted from 0. The spec book charts are representative, not serial-matched. This is training, not lift approval: a serial-matched chart set, the stamped hook-block weights on Unit 126 and the employer’s practical evaluation are still required. The employer — not this program — makes competent and qualified person determinations, and completing it does not confer qualification.

Don’t just read the page.
Work the machine’s mental model.

Live CK1600 Geometry & Rated Capacity Curve

CK1600 LMI Controller & Interlock Twin

Gauge Cluster Fault Code Simulator (O&M PDF p49–p56)

Crawler Footprint, Translifter & O&M 4.1 Stability Matrix

Field Decision Scenario

Make the Operator’s Call:

Brake, Wire Rope, Guy Line & Drum Inspector

9-Stage CK1600 Self-Assembly Sequencer

Don’t just read the page.Work the machine’s mental model.

Live CK1600 Geometry & Rated Capacity Curve

CK1600 LMI Controller & Interlock Twin

Gauge Cluster Fault Code Simulator (O&M PDF p49–p56)

Crawler Footprint, Translifter & O&M 4.1 Stability Matrix

Field Decision Scenario

Make the Operator’s Call:

Brake, Wire Rope, Guy Line & Drum Inspector

9-Stage CK1600 Self-Assembly Sequencer

Don’t just read the page.
Work the machine’s mental model.