Change #30
Accepted by sd on 2026-09-16 03:07. It is live on the pages below; each page's History tab shows the resulting revision.
Change #30 · Deepen the excavator bill of materials: fasteners, wiring, hoses and fittings, engine internals and hardware counted as parts accepted
New: Hex Bolt excavator-hex-bolt
- Created Hex Bolt (part): "Flanged hex bolt, M8 to M24, used throughout the structure, covers and equipment mounts."
New: Hex Nut excavator-hex-nut
- Created Hex Nut (part): "Flanged or nyloc hex nut mating the bolts."
New: Washer excavator-washer
- Created Washer (part): "Flat or spring washer under bolt heads and nuts."
New: Cable Tie & Clamp excavator-cable-tie
- Created Cable Tie & Clamp (part): "Tie, P-clip or saddle clamp securing wiring, hoses and lines to the structure."
New: Insulated Wire (cut length) excavator-wire
- Created Insulated Wire (cut length) (part): "One cut-to-length insulated conductor in the harness, terminated at both ends."
New: Crimp Terminal excavator-crimp-terminal
- Created Crimp Terminal (part): "Tin-plated terminal crimped to a wire end and seated in a connector or on a stud."
New: Fuse excavator-fuse
- Created Fuse (part): "Blade, midi or cartridge fuse protecting one circuit."
New: Piston Ring excavator-piston-ring
- Created Piston Ring (part): "Compression or oil-control ring, three per piston."
New: Bearing Shell excavator-bearing-shell
- Created Bearing Shell (part): "Half-shell plain bearing for a crankshaft main or big-end journal."
New: Poppet Valve excavator-valve
- Created Poppet Valve (part): "Intake or exhaust valve, four per cylinder."
New: Valve Spring excavator-valve-spring
- Created Valve Spring (part): "Coil spring closing a valve."
New: Valve Train Component excavator-valve-train-part
- Created Valve Train Component (part): "Rocker, pushrod or bridge, retainer and collets, guide and seat serving one valve."
New: Camshaft excavator-camshaft
- Created Camshaft (part): "In-block camshaft driving the valve train and, on older designs, the injection pump."
New: Flywheel & Housing excavator-flywheel
- Created Flywheel & Housing (part): "Flywheel with ring gear and the housing that couples the engine to the hydraulic pumps."
New: Charge Air Cooler excavator-intercooler
- Created Charge Air Cooler (part): "Air-to-air intercooler between turbocharger and intake manifold."
New: Air Cleaner Assembly excavator-air-cleaner
- Created Air Cleaner Assembly (part): "Two-stage air filter with pre-cleaner, housing and restriction indicator."
New: Exhaust Pipe & Muffler excavator-exhaust-pipe
- Created Exhaust Pipe & Muffler (part): "Exhaust pipe sections, muffler and clamps from turbocharger to stack."
New: Engine Mount excavator-engine-mount
- Created Engine Mount (part): "Rubber isolator mount between engine and rotating frame."
New: Cooling Fan & Drive excavator-fan-drive
- Created Cooling Fan & Drive (part): "Suction fan with hub, belt and hydraulic or viscous drive."
New: Engine Sensor excavator-engine-sensor
- Created Engine Sensor (part): "Speed, position, pressure, temperature, boost, NOx and soot sensors."
New: Engine Gasket & Seal excavator-engine-gasket
- Created Engine Gasket & Seal (part): "Head, cover, manifold, pump and pan gaskets and small seals."
New: Engine Bolt & Stud excavator-engine-bolt
- Created Engine Bolt & Stud (part): "Fasteners for the engine assembly."
New: Hydraulic Hose Assembly excavator-hydraulic-hose
- Created Hydraulic Hose Assembly (part): "Wire-braided or spiral hose with crimped fittings, one run in the hydraulic circuit."
New: Hydraulic Fitting excavator-hose-fitting
- Created Hydraulic Fitting (part): "ORFS, JIC or flange fitting, adapter or elbow in the hydraulic circuit."
New: Hydraulic Steel Tube excavator-hydraulic-tube
- Created Hydraulic Steel Tube (part): "Bent and flared steel tube run between valve, pumps and cylinders."
New: Pilot Circuit Valve excavator-pilot-circuit-valve
- Created Pilot Circuit Valve (part): "Small directional, shuttle or pressure-reducing valve in the pilot circuit: travel pedal valves, pilot manifold and lock valve."
New: Solenoid Valve excavator-solenoid-valve
- Created Solenoid Valve (part): "Electrically switched valve for pump regulation, swing brake, travel speed and attachments."
New: Hydraulic Accumulator excavator-accumulator
- Created Hydraulic Accumulator (part): "Gas-charged accumulator holding pilot pressure for lowering equipment with the engine off."
New: Center Swivel Joint excavator-center-joint
- Created Center Swivel Joint (part): "Rotary manifold passing travel hydraulics from the upper structure to the undercarriage through the slew ring."
New: Cylinder Seal Kit excavator-hydraulic-seal-kit
- Created Cylinder Seal Kit (part): "Rod seal, buffer seal, wiper, piston seal and wear rings for one cylinder."
New: Hose Guard & Clamp excavator-hose-guard
- Created Hose Guard & Clamp (part): "Spiral guard, sleeve and clamp protecting and routing hoses along boom and arm."
New: Track Shoe Bolt & Nut excavator-track-bolt
- Created Track Shoe Bolt & Nut (part): "Hardened bolt and nut fastening one corner of a track shoe to its link."
New: Roller Mounting Bolt excavator-roller-bolt
- Created Roller Mounting Bolt (part): "Bolt fastening a track or carrier roller to the track frame."
New: Track Guard excavator-track-guard
- Created Track Guard (part): "Steel guard keeping the chain aligned on the frame."
New: Grease Fitting excavator-grease-fitting
- Created Grease Fitting (part): "Lubrication nipple on a pin, bushing or bearing."
New: Final Drive Bolt excavator-final-drive-bolt
- Created Final Drive Bolt (part): "Bolt mounting the final drive and sprocket to the track frame."
New: Slew Ring Bolt excavator-swing-bearing-bolt
- Created Slew Ring Bolt (part): "High-strength bolt fastening the swing bearing to the upper and lower frames."
New: Cover & Hood Panel excavator-cover-panel
- Created Cover & Hood Panel (part): "Sheet-steel engine hood, side door or cover panel on the upper structure."
New: Hinge & Latch excavator-hinge-latch
- Created Hinge & Latch (part): "Hinge, gas strut or latch on a hood, door or cover."
New: Handrail & Step excavator-handrail
- Created Handrail & Step (part): "Access step, handrail or anti-slip plate on the upper structure."
New: Mirror excavator-mirror
- Created Mirror (part): "Convex rear or side mirror."
New: Camera excavator-camera
- Created Camera (part): "Rear or side-view camera feeding the cab monitor."
New: Battery Box & Toolbox excavator-battery-box
- Created Battery Box & Toolbox (part): "Lockable compartment for the batteries and tools."
New: Counterweight Bolt excavator-counterweight-bolt
- Created Counterweight Bolt (part): "Large bolt fastening the counterweight to the frame."
New: Pin Bushing excavator-bushing
- Created Pin Bushing (part): "Steel or bronze bushing pressed into a pin bore."
New: Shim & Thrust Ring excavator-shim
- Created Shim & Thrust Ring (part): "Shim or thrust ring taking up side play at a pin joint."
New: Pin Retainer excavator-pin-retainer
- Created Pin Retainer (part): "Retaining bolt, plate or lock pin holding a pivot pin in place."
New: Grease Line excavator-grease-line
- Created Grease Line (part): "Tube from the lubrication point to the pin."
New: Cab Glass excavator-cab-glass
- Created Cab Glass (part): "Laminated or tempered pane: windshield, door, side, rear or roof window."
New: Cab Door excavator-cab-door
- Created Cab Door (part): "Framed glazed door with hinges, latch, slide window and lock."
New: Wiper & Washer excavator-wiper
- Created Wiper & Washer (part): "Wiper motor, arm and blade with washer pump and reservoir."
New: Cab Mount excavator-cab-mount
- Created Cab Mount (part): "Viscous or rubber isolation mount between cab and frame."
New: Cab Interior Trim excavator-interior-trim
- Created Cab Interior Trim (part): "Moulded trim panel, headliner or floor mat piece inside the cab."
New: Travel Pedal & Lever excavator-travel-pedal
- Created Travel Pedal & Lever (part): "Pilot-operated travel pedal with lever for one track."
New: Switch excavator-switch
- Created Switch (part): "Rocker, rotary or key switch on the cab console."
New: HVAC Duct & Vent excavator-hvac-duct
- Created HVAC Duct & Vent (part): "Air duct and louvre vent in the cab."
New: Seat Belt excavator-seat-belt
- Created Seat Belt (part): "Retractable lap belt on the operator seat."
New: Cab Radio excavator-radio
- Created Cab Radio (part): "AM/FM radio with speakers."
New: Sound Insulation Pad excavator-sound-insulation
- Created Sound Insulation Pad (part): "Foam or bitumen pad bonded inside the cab shell."
New: Trim Clip excavator-trim-clip
- Created Trim Clip (part): "Plastic fastener for interior trim."
New: Beacon & Horn excavator-beacon
- Created Beacon & Horn (part): "Rotating or LED beacon and electric horn."
New: Machine Sensor excavator-sensor
- Created Machine Sensor (part): "Angle, pressure, temperature, level or speed sensor feeding the machine controller."
New: Travel Alarm excavator-travel-alarm
- Created Travel Alarm (part): "Audible alarm sounding when the machine moves."
Diesel Engine excavator-diesel-engine
- Added excavator-piston-ring × 18
- Added excavator-bearing-shell × 26
- Added excavator-valve × 24
- Added excavator-valve-spring × 24
- Added excavator-valve-train-part × 24
- Added excavator-camshaft × 1
- Added excavator-flywheel × 1
- Added excavator-intercooler × 1
- Added excavator-air-cleaner × 1
- Added excavator-exhaust-pipe × 3
- Added excavator-engine-mount × 4
- Added excavator-fan-drive × 1
- Added excavator-engine-sensor × 20
- Added excavator-engine-gasket × 40
- Added excavator-engine-bolt × 620
- Added Connector × 48: "engine harness"
- Added Oil Seal × 6
- Added excavator-hex-bolt × 60: "mounts, radiator, guards"
- Added excavator-hex-nut × 40
Hydraulic System excavator-hydraulic-system
- Added excavator-hydraulic-hose × 130
- Added excavator-hose-fitting × 280
- Added excavator-hydraulic-tube × 44
- Added excavator-pilot-circuit-valve × 10
- Added excavator-solenoid-valve × 10
- Added excavator-accumulator × 2
- Added excavator-center-joint × 1
- Added Pressure Sensor × 8
- Added O-Ring Set × 40
- Added excavator-hex-bolt × 360
- Added excavator-hex-nut × 200
- Added excavator-washer × 200
- Added excavator-cable-tie × 220
Undercarriage excavator-undercarriage
- Added excavator-track-bolt × 400: "four per shoe"
- Added excavator-roller-bolt × 144
- Added excavator-track-guard × 4
- Added excavator-grease-fitting × 24
- Added excavator-final-drive-bolt × 48
- Added excavator-hex-bolt × 200
- Added excavator-hex-nut × 120
Upper Structure excavator-upper-structure
- Added excavator-swing-bearing-bolt × 72
- Added excavator-cover-panel × 14
- Added excavator-hinge-latch × 36
- Added excavator-handrail × 8
- Added excavator-mirror × 3
- Added excavator-camera × 2
- Added excavator-battery-box × 1
- Added excavator-counterweight-bolt × 8
- Added excavator-hex-bolt × 700
- Added excavator-hex-nut × 420
- Added excavator-washer × 420
Work Equipment excavator-work-equipment
- Added Pivot Pin × 10: "boom, arm and cylinder pins; bucket linkage pins counted there"
- Added excavator-bushing × 28
- Added excavator-shim × 40
- Added excavator-pin-retainer × 14
- Added excavator-grease-line × 14
- Added excavator-grease-fitting × 20
- Added excavator-hose-guard × 12
- Added excavator-hydraulic-seal-kit × 6: "boom, arm, bucket cylinders"
- Added excavator-hex-bolt × 80
Operator Cab excavator-cab
- Added excavator-cab-glass × 6
- Added excavator-cab-door × 1
- Added excavator-wiper × 2: "upper and lower windshield"
- Added excavator-cab-mount × 4
- Added excavator-interior-trim × 14
- Added excavator-travel-pedal × 2
- Added excavator-switch × 24
- Added excavator-hvac-duct × 6
- Added excavator-seat-belt × 1
- Added excavator-radio × 1
- Added excavator-sound-insulation × 12
- Added excavator-trim-clip × 220
- Added excavator-hex-bolt × 220
- Added excavator-hex-nut × 120
Electrical System excavator-electrical
- Added excavator-wire × 1200
- Added excavator-crimp-terminal × 2400: "two per wire"
- Added Connector × 260
- Added excavator-fuse × 40
- Added excavator-sensor × 30
- Added excavator-beacon × 1
- Added excavator-travel-alarm × 1
- Added Electronic Control Unit × 3: "engine, monitor, air conditioning"
- Added excavator-cable-tie × 420
Machine findings
- Diesel Engine: 27 direct children (dominant function: Regulate flow) — worth checking for integration or standardization
- Operator Cab: 19 direct children (dominant function: Communicate signal) — worth checking for integration or standardization
- Hydraulic System: 19 direct children (dominant function: Regulate flow) — worth checking for integration or standardization
- Electrical System: 16 direct children (dominant function: Connect electrically) — worth checking for integration or standardization
- Work Equipment: 16 direct children (dominant function: Communicate signal) — worth checking for integration or standardization
- Undercarriage: 15 direct children (dominant function: Guide motion) — worth checking for integration or standardization
- Upper Structure: 15 direct children (dominant function: Fasten or join) — worth checking for integration or standardization
- Excavator functions after this change: Connect electrically, Fasten or join, Guide motion