Classification and Technical Guide for ZL90/6750DB Parts

1

WG01059001

Doghouse

Carbon steel (A36) with epoxy anti-corrosive coating, reinforced with structural steel angles for impact resistance and weatherproofing

1. Corrosion from oilfield mud, saltwater, and extreme temperature fluctuations; 2. Structural fatigue from continuous drilling vibrations; 3. Impact damage from falling tools/debris.

1. Clean mud buildup monthly and reapply anti-corrosive coating quarterly; 2. Install debris guards around the structure; 3. Conduct annual magnetic particle testing for hidden cracks.

2

JJ948401-00

Derrick

High-strength alloy steel (A514) with hot-dip galvanizing, engineered for rated hoisting loads and outdoor oilfield exposure

1. Stress fatigue from repeated heavy-load lifting; 2. Corrosion at weld joints and fastener points; 3. Bolt loosening due to persistent operational vibrations.

1. Inspect welds bi-annually for cracks; 2. Perform monthly bolt torque checks per API 8C standards; 3. Avoid overloading beyond rated capacity to prevent structural strain.

3

DZ912401-00

Substructure

Reinforced carbon steel (A1011) with powder coating, thickened base plates for even load distribution across the foundation

1. Deformation from uneven weight distribution; 2. Corrosion from ground moisture and chemical-laden mud; 3. Impact damage during equipment relocation.

1. Ensure level installation on a stabilized foundation; 2. Clean mud and debris from base plates weekly; 3. Use rated lifting slings to avoid impact during movement.

4

WG04620113

Catwalk

Carbon steel grating (A1011) with anti-slip surface and galvanized finish, supported by heavy-duty steel beams for pedestrian/tool traffic

1. Wear from constant foot traffic and tool dragging; 2. Corrosion from oil spills and outdoor exposure; 3. Bending from placing oversized/overweight equipment.

1. Prohibit loading beyond the catwalk’s weight rating; 2. Wipe oil spills immediately to prevent slip and corrosion; 3. Replace worn grating panels at first sign of structural weakening.

5

WG01049001

Engine generator room

Galvanized steel (A653) with soundproof, weatherproof panels and sealed joints to block dust/moisture ingress

1. Panel corrosion from rain, snow, and saltwater; 2. Seal degradation leading to dust/moisture damage to internal components; 3. Structural stress from generator vibrations.

1. Inspect door/seal gaskets monthly and replace if cracked; 2. Clean exterior surfaces quarterly to remove corrosive debris; 3. Install vibration dampeners between the generator and room base.

1

WG04513087

Wire rope reverse rope machine

Alloy steel (4140) gears, cast iron housing with anti-corrosive coating, and precision ball bearings for smooth rope reversal

1. Gear wear from insufficient lubrication; 2. Bearing damage from dust and debris ingress; 3. Excessive stress from rope misalignment.

1. Lubricate gears and bearings monthly with industrial-grade gear oil; 2. Install dust covers to protect internal components; 3. Align ropes before operation to avoid uneven stress.

2

250502030105035018/19

5T air winch

Alloy steel (A36) housing, high-strength steel gears, and brass air valves, rated for 5-ton lifting capacity in oilfield environments

1. Gear wear from air contamination and insufficient lubrication; 2. Valve damage from dirty compressed air; 3. Cable drum wear from misaligned rope winding.

1. Filter compressed air to remove moisture and debris; 2. Lubricate gears and cables weekly; 3. Ensure even rope winding on the drum to avoid uneven wear.

3

040302010441204503

Wireline Ø45

High-tensile steel (IPS EIPS) with galvanized coating, 45mm diameter, designed for heavy-load lifting and drilling tool deployment

1. Abrasive wear from contact with derrick components; 2. Fatigue failure from repeated bending and tension; 3. Corrosion from saltwater and mud.

1. Inspect for frays, kinks, and corrosion daily; 2. Avoid sharp bends that exceed the rope’s minimum bend radius; 3. Clean and lubricate weekly with wire rope-specific lubricant.

4

250110050020000000

Electric hoist TS-1.5

Steel (A36) housing, copper windings, and alloy steel hooks, rated for 1.5-ton capacity, engineered for indoor/outdoor oilfield use

1. Motor damage from voltage fluctuations; 2. Hook wear from overloading and improper load positioning; 3. Brake failure from dust and debris buildup.

1. Monitor voltage to avoid motor strain; 2. Never overload beyond 1.5-ton capacity; 3. Clean brake components monthly to ensure proper functionality.

5

AZ903101-0900

Rope-aligning appliance

Alloy steel (4140) rollers and brackets, galvanized finish, designed to guide and align wire ropes during hoisting

1. Roller wear from constant rope contact; 2. Bracket corrosion from outdoor exposure; 3. Bearing damage from dust and mud ingress.

1. Inspect rollers weekly for wear and replace if grooved; 2. Lubricate bearings monthly; 3. Clean debris from the alignment mechanism before each use.

6

DG675

Hook

High-strength alloy steel (A668) with heat treatment for impact resistance, rated for compatibility with ZL90/6750DB hoisting systems

1. Wear at the hook throat from load contact; 2. Fatigue cracks from repeated heavy loads; 3. Corrosion from oilfield fluids and weather.

1. Inspect for cracks and throat wear daily; 2. Use load rings to distribute weight evenly; 3. Store in a dry area when not in use and apply anti-corrosive grease.

7

SL675

Swivel

Alloy steel (4130) body, brass seals, and stainless steel bearings, designed to allow rotational movement during hoisting

1. Seal wear leading to fluid leakage; 2. Bearing damage from dirt and debris; 3. Corrosion from saltwater and chemical exposure.

1. Inspect for leaks before each use; 2. Clean and lubricate bearings weekly; 3. Replace seals at first sign of leakage to prevent internal damage.

1

BC160212-00

F-1600HL mud pump package

Cast iron (ASTM A48) pump body, alloy steel (4140) valves, and rubber diaphragms, rated for high-pressure mud circulation

1. Diaphragm wear from abrasive mud particles; 2. Valve damage from chemical corrosion; 3. Pump body wear from high-pressure fluid flow.

1. Filter mud to remove abrasive particles; 2. Replace diaphragms per manufacturer’s schedule; 3. Use corrosion-resistant fluids compatible with pump materials.

2

BC220201-00

F-2200HL mud pump package

Reinforced cast iron (ASTM A536) body, high-strength steel valves, and synthetic rubber diaphragms, designed for heavy-duty mud circulation

1. Diaphragm failure from overpressure; 2. Valve seat wear from constant fluid flow; 3. Corrosion from acidic mud formulations.

1. Monitor system pressure to avoid overloading; 2. Inspect valves weekly for wear; 3. Add corrosion inhibitors to acidic mud mixtures.

3

WG04309001

HP Manifold

Alloy steel (A105) with anti-corrosive coating, designed for high-pressure fluid transfer in drilling mud systems

1. Pipe wear from abrasive mud particles; 2. Joint leakage from gasket degradation; 3. Corrosion from chemical exposure.

1. Clean manifold after each use to remove mud buildup; 2. Inspect gaskets monthly and replace if damaged; 3. Use compatible fluids to prevent chemical corrosion.

4

WG04409001

Cementing manifold

Stainless steel (316L) for corrosion resistance, engineered to handle high-pressure cement slurry transfer in well cementing

1. Clogging from dried cement slurry; 2. Corrosion from cement additives; 3. Joint leakage from improper installation.

1. Flush manifold with clean water immediately after use; 2. Use compatible lubricants on joints; 3. Inspect for clogs before each cementing operation.

1

AZ903101-0600

Air system

Aluminum (6061) air tanks, steel (A36) pipelines, and rubber hoses, designed to supply clean, regulated air to ZL90/6750DB components

1. Hose degradation from oil and chemical exposure; 2. Tank corrosion from moisture buildup; 3. Valve wear from pressure fluctuations.

1. Drain moisture from air tanks daily; 2. Inspect hoses weekly for cracks and leaks; 3. Regulate air pressure to match component requirements.

WG05706041

AZ50210102022105

420402011240400000

420201041112030000

AZ50210102022106

530301141601901000

530301141501801000

T104-002.00

430103002222800000

420503016161600000

BG322004-0202

512704070100081000

420201070716040000

420201011120060000

BA705315-0501

420201070720060000

420503016201600000

BA705315-0502

420503016201600000

420201011116040000

BA705315-0503

430103002222600000

420503016161600000

BA702305-0212

420201070720050000

420201070712030000

512605010141001000

61302011152101000

420503016121600000

420201080708030000

AZ50210102022101

420201070716045000

420501066080100000

AZ50210102022103

420402016160200000

512704020000032000

380202051160006000

520207050400200000

140507050101000000

520209050400080000

520203080300200000

520201040400200000

380210100010000000

520209050400200000

512601010058002000

520901021221341000

51102010100010000

520901150017030000

520203080300200000

520901035800100000

520207044020402000

140507050101600000

520901035500100000

520901150013030000

520901150024030000

52090103540010000

530402020001048000

520901040000150000

How often should ZL90/6750DB hoisting ropes be inspected and replaced?

Inspect hoisting ropes (040302010441204503) daily for frays, kinks, and corrosion per API 8C. Replace immediately if 10% of wires in any strand are broken, or if the rope shows signs of fatigue cracks or excessive wear. For heavy-use operations, replace every 6–12 months regardless of visible wear.

What maintenance is required for mud pump packages to prevent downtime?

For F-1600HL (BC160212-00) and F-2200HL (BC220201-00) pumps, filter mud to remove abrasive particles, replace diaphragms every 3–4 months, inspect valves weekly, and flush the system after each use. Add corrosion inhibitors for acidic mud to extend component life and avoid unplanned shutdowns.

Can non-original parts be used for ZL90/6750DB equipment?

No. Non-original parts may not meet API 8C and ISO 13628-1 standards, leading to structural failure, reduced durability, and safety risks. Original parts are engineered for exact compatibility, ensuring operational safety and minimizing long-term maintenance costs in harsh oilfield environments.