A 100-tonne lattice crawler crane with 425 t·m maximum load moment. Powered by a Weichai WP7G270E301 199 kW Euro IIIA diesel engine, 61 m lattice boom (13–61 m), 7–19 m fixed jib (max combo 52+19m), gantry self-erection, and modular design compatible across XGC series below 100T.
-->Detailed technical specifications for XCMG XGC100A 100T Lattice Crawler Crane
Daily pre-operational checks · Service schedule by operating hours · Warning alert actions — XCMG XGC100A 100-tonne lattice-boom crawler crane, Weichai WP7G270E301 diesel (199 kW, EURO IIIA), 13–61 m boom with LMI and anti-two-block protection.
Complete every check before engine start and before any lift. On a 100-tonne crawler crane, a single active defect can cause catastrophic loss — if in doubt, do not operate.
Dipstick check with the engine cold — level between MIN and MAX.
Act if: below MIN — top up the correct grade; milky or metallic oil — stop the engine immediately.
Check the expansion tank (MIN–MAX); never open the cap when hot; check the radiator for external blockage.
Act if: below MIN — top up coolant mix once cool; blocked radiator — clean before starting.
Check the tank gauge and drain water from the pre-filter / water separator (400 L tank).
Act if: below ¼ tank — refuel before the shift. Never run dry.
Check the tank sight glass — level between the MIN and MAX marks.
Act if: foam or discolouration — report contamination; below MIN — top up before operating.
Power up and confirm the LMI display is active with the correct boom angle and length; test the 90% alarm.
Act if: no display, wrong configuration, or the alarm will not respond — do not lift; report for inspection.
Lower the hook fully and confirm the two-block limit-switch lamp illuminates on test.
Act if: the lamp does not illuminate — no lift until the limit switch is working.
Inspect the main, auxiliary and luffing ropes for broken wires, kinks, crushing or flat spots.
Act if: any broken wires, kinks or flat spots — quarantine the crane; rope inspection by a qualified inspector.
Confirm the safety latch closes fully on both hook blocks and the swivel rotates freely.
Act if: the latch will not close or the swivel is seized — do not rig or lift.
Check every boom-section pin retaining clip is secure — no pin partially withdrawn.
Act if: any clip missing or pin withdrawn — do not operate; secure before any lift.
Inspect shoe pins and track links for broken pins; check track tension — not too tight or too loose.
Act if: broken pins/links or incorrect tension — correct before travelling or lifting.
Walk a full circle — check the engine, hydraulic hoses, winch gearboxes and track-drive motors for leaks.
Act if: any oil or fuel leak — do not operate; find the source and repair first.
Confirm all levers return to neutral; test the horn and lights and that the emergency stop is accessible and functional.
Act if: a control sticks or the emergency stop fails — do not operate until fixed.
Read cumulatively — each interval also includes all lower-interval tasks. CHANGE / REPLACE / INSPECT / GREASE / CHECK / CERTIFY.
Oil, coolant & fuel levels
Check dipstick, expansion tank & gauge; drain the water separator
Air filter indicator & radiator
Check restriction indicator; radiator clear of external blockage
Hydraulic oil level
Sight glass between MIN and MAX
Ropes, hoses & leaks
Walk-around for leaks; visual main / aux / luffing ropes
Crawler tracks & pins
Shoe pins, track links & track tension
Boom pins & hook latches
Retaining clips secure; safety latches close fully
LMI & anti-two-block
Functional test before lifting; confirm 90% alarm & ATB lamp
Cab controls & e-stop
Levers return to neutral; horn, lights & emergency stop
Engine oil — 50 h break-in
Mandatory first change; SAE 15W-40 or per Weichai WP7G spec
Oil filter
Replace at 50 h and at every oil change
Air filter & fan belt
Clean primary if indicator triggered; check belt tension/condition
Hydraulic hoses
Chafing / early leaks across boom, slewing & undercarriage circuits
Rope dressing
Apply lubricant to main, aux & luffing rope systems
Slewing ring & gearbox
EP2 grease gear teeth & ball race; check gearbox oil & seal
Winch & crawler gearbox oil
Check level in all 3 winch gearboxes & both track drives
All pivot pins
Boom foot, gantry sheave, luffing anchor & pivot pins
Critical fasteners
Torque slewing-ring bolts, boom butt-pin retainers, counterweight hardware
Engine oil + fuel filter
Change oil at 500 h; replace oil & fuel filters
Air primary element
Replace at 500 h or after 2 cleanings; safety element annually
Coolant
Check concentration; change at 1,000 h or 2 years
Return filter & strainer
Return-line filter at 500 h; suction strainer at 1,000 h
Hydraulic oil
Change at 1,000 h or if emulsification / contamination detected
Slewing ring — full grease
Ball race & gear teeth; inspect for cracks, pitting or scoring
Winch & crawler gearbox oil
Change oil in all 3 winch gearboxes & both track drives at 1,000 h
Wire ropes — detailed
Broken wires per lay, diameter reduction, core deformation
Structure
Boom chord welds, gantry, turntable & undercarriage frame; NDT if cracked
Full engine service
Oil + all filters; leaks, mounts & exhaust condition
Coolant & injectors
Drain, flush & refill coolant; inspect injector spray pattern
Hydraulic oil — full change
Drain & flush; replace all filters & strainers
Pumps & HP hoses
Test main & slewing pump pressure/flow; replace all HP hoses (2,000 h / 2-yr)
Slewing & winch overhaul
Bolt torque, ball-track, gearbox oil, seals, backlash; winch brake discs
Crawler undercarriage
Shoes, sprockets (×2), track rollers (×22/side), upper rollers (×4), idlers (×2)
Boom structure & LMI
UT chord wall & weld NDT; full LMI recalibration per load chart
Electrical & safety devices
Harness, connectors, battery test, ECU scan; test all safety devices
Overhaul decision
Oil-consumption, blow-by & compression test → continue / top-end / replace
Turbocharger
Shaft play, bearing & seal condition; replace if play exceeds spec
Pumps — rebuild / replace
Main hoist, slewing & pilot pumps reach service life; test & act on results
Luffing / derricking cylinders
Inspect seals & rod surface for scoring; replace seals/rods as required
Slewing ring & gearbox
Radial / axial play (replace ring if beyond tolerance); overhaul gearbox
Winch brake discs
Replace friction discs & plates in all 3 winch brakes; check springs
Wire ropes — certified inspection
Certified inspection mandatory (ISO 4309) regardless of visual condition; replace if XCMG retirement criteria are met
Crawler & boom NDT
Replace worn sprockets/rollers/idlers; UT chords & MT/PT boom welds; measure boom pins
LMI cert & proof load test
Certified LMI recalibration; proof load test at 1.1× SWL
Third-party inspection — annual
Competent Person per Factories Act 1948 / BOCW Act 1996; keep certificate on site
Proof load / SWL test — annual
1.1× SWL by certifying body; record in the Load Test Register
LMI calibration — annual
Certified by a qualified engineer; keep record in the cab
Safety-device certification — annual
ATB, LMI alarm, load-chart accuracy, slew locks, e-stop & emergency lower
Boom & structure NDT — 2-yearly
Certified MT/PT of boom, gantry, turntable & undercarriage; crack → remove from service
Wire-rope third-party — annual
Qualified inspector; broken-wire count, core & diameter; document retirement
Operator competency & insurance
Valid competency certificate per operator; annual insurance renewal survey
Fire extinguisher & placards
6-monthly extinguisher check; legible load chart & emergency placard in cab
Monitor the operation display and LMI. RED = stop crane operations or the engine immediately; AMBER = take corrective action before continuing any lift. Log every alert in the maintenance register.
Load at 100% rated capacity for the current radius and boom configuration.
Immediate action: STOP hoist-up. Lower the load. Reduce the load or change to a smaller radius.
Risk if ignored: boom collapse or machine tip-over — risk to life.
Hook block at the upper limit at the boom head — rope fully wound.
Immediate action: STOP hoist. Lower the hook immediately. Reset and recheck the limit switch.
Risk if ignored: rope overwind — sudden load drop — risk to life.
Oil critically low or oil-pump failure.
Immediate action: STOP the engine immediately. Check oil level and pump pressure.
Risk if ignored: seized engine — major write-off.
Coolant critically low or cooling-system failure.
Immediate action: STOP the engine. Let it cool naturally. Check coolant level and radiator.
Risk if ignored: head-gasket failure — major engine damage.
Circuit pressure drop — potential hose rupture or pump failure.
Immediate action: hold loads on the brakes. Shut down. Inspect all hose runs before restart.
Risk if ignored: uncontrolled load or boom drop — risk to life.
Metallic clunking or grinding during slew — possible ring damage.
Immediate action: STOP slewing. Park the boom. Do not lift. Arrange an immediate XCMG inspection.
Risk if ignored: slewing-ring failure — boom drop — risk to life.
Load at 90% of rated capacity — approaching the structural limit.
Immediate action: assess the load weight before proceeding. Do not inch further without re-assessment.
Risk if ignored: creep into overload if not controlled.
Coolant marginal — partial blockage or fouled radiator.
Immediate action: reduce the load cycle. Idle the engine. Check coolant and radiator cleanliness.
Risk if ignored: escalates to over-temperature — engine damage.
Air-cleaner primary element choked — intake restriction warning.
Immediate action: stop. Clean or replace the primary air filter before the next shift.
Risk if ignored: engine power loss and turbocharger damage.
Kinks, bird-caging, broken wires or flat spots found on inspection.
Immediate action: stop all lifts. Quarantine the crane. Arrange rope inspection by a qualified inspector.
Risk if ignored: rope failure under load — risk to life.
Unusual drift or a brake-engagement delay during slewing.
Immediate action: stop slewing. Inspect the brake and gearbox before the next lift.
Risk if ignored: loss of slewing control — load swing — risk to life.
Hydraulic-oil temperature reading above the normal operating band.
Immediate action: reduce the cycle duty. Check hydraulic oil level and cooler condition.
Risk if ignored: accelerated seal and pump wear.
Everything you need to know about the XCMG XGC100A Lattice Crawler Crane