Honghuda Drawworks JC50 Model Spare Parts List

1

GUAGE PRESSURERADIAL,F/1000HP,HH 27.5,CHINESE DRAWWORKS (Model: Y-60)

Case: Iron or stainless steel; Dial: Aluminum alloy; Internal mechanism: Copper alloy and steel; Measuring element: Bourdon tube (brass)

1. Internal mechanism loosening or damage caused by long-term high-frequency vibration of the drawworks; 2. Dial fogging or scale fading due to moisture ingress in high-humidity oilfield environments.

1. Install a shock-absorbing gasket at the gauge base to reduce vibration transmission; regularly check the tightness of the installation interface; 2. Equip with a dust-proof and waterproof protective cover; avoid direct washing with high-pressure water during rig cleaning; 3. Calibrate the gauge every 6 months to ensure measurement accuracy (allowable error ≤ ±1.6%).

1

JC50 DRAWWORKS CHAIN (Model: 160-2X64)

Chain plate: Alloy steel 20Mn2 (quenched and tempered); Pin shaft: Alloy steel 40Cr (carburized and quenched); Roller: Alloy steel 20Cr (carburized and quenched)

1. Wear of pin shafts and bushings caused by insufficient lubrication and dust contamination; 2. Chain elongation and chain plate fatigue cracking due to long-term heavy-load transmission.

1. Regularly apply high-temperature and anti-wear lubricating grease to the chain; clean the chain with diesel oil every 500 operating hours to remove dust and debris; 2. Check the chain elongation regularly (allowable elongation ≤ 3%); replace the chain immediately if elongation exceeds the limit or cracks are found on chain plates.

2

JC50 DRAWWORKS CHAIN (Model: 140-4X60)

Chain plate: Alloy steel 20Mn2 (quenched and tempered); Pin shaft: Alloy steel 40Cr (carburized and quenched); Roller: Alloy steel 20Cr (carburized and quenched)

1. Uneven wear caused by misalignment of the chain and sprocket; 2. Corrosion and pitting of chain components due to moisture and chemical substances in the oilfield environment.

1. Check and adjust the alignment of the chain and sprocket monthly (allowable deviation ≤ 0.5mm); 2. Apply anti-rust oil to the chain surface during long-term shutdown; store spare chains in a dry and ventilated environment; 3. Avoid overloading the drawworks to reduce sudden stress on the chain.

3

JC50 DRAWWORKS CHAIN (Model: 140-4X70)

Chain plate: Alloy steel 20Mn2 (quenched and tempered); Pin shaft: Alloy steel 40Cr (carburized and quenched); Roller: Alloy steel 20Cr (carburized and quenched)

1. Wear of roller surfaces caused by continuous friction with sprocket teeth; 2. Fatigue damage of chain plates due to frequent start-stop and load changes of the drawworks.

1. Regularly inspect the wear condition of sprocket teeth; replace severely worn sprockets in time to avoid accelerated chain wear; 2. Operate the drawworks smoothly to reduce impact load during start-stop; 3. Check the tightness of the chain tensioner regularly to ensure appropriate chain tension.

4

JC50 DRAWWORKS CHAIN (Model: 160-3X86)

Chain plate: Alloy steel 20Mn2 (quenched and tempered); Pin shaft: Alloy steel 40Cr (carburized and quenched); Roller: Alloy steel 20Cr (carburized and quenched)

1. Severe wear of pin shafts and bushings caused by long-term high-speed operation; 2. Chain breakage risk due to material fatigue of chain components under long-term alternating load.

1. Strictly follow the operating speed limit of the drawworks; avoid overspeeding to reduce the wear rate of chain components; 2. Conduct non-destructive testing on the chain every 12 months to detect internal fatigue cracks; 3. Replace the chain if any signs of fatigue (such as discoloration of chain plates) are found.

5

JC50 DRAWWORKS CHAIN (Model: 160-3X104)

Chain plate: Alloy steel 20Mn2 (quenched and tempered); Pin shaft: Alloy steel 40Cr (carburized and quenched); Roller: Alloy steel 20Cr (carburized and quenched)

1. Contamination-induced wear caused by oil sludge and metal particles entering the chain hinge; 2. Chain elongation due to thermal expansion and contraction under high-temperature operation.

1. Maintain the cleanliness of the drawworks' lubrication system; replace lubricating oil and filters regularly; 2. Avoid long-term operation of the drawworks in high-temperature environments (above 120°C); strengthen the cooling of the transmission system; 3. Check the chain length regularly and adjust the tensioner in time.

1

JC50 Drawworks oil pump belt (Model: A1400)

Base material: Chloroprene rubber (CR); Reinforcement layer: High-strength polyester cord; Surface: Anti-wear rubber coating

1. Aging, hardening, and cracking caused by long-term exposure to high temperature and sunlight; 2. Wear and fraying of the belt edge due to misalignment of the belt pulley.

1. Avoid direct sunlight on the belt; install a protective cover if necessary; replace the belt every 12 months or if signs of aging are found; 2. Check and adjust the alignment of the belt pulley monthly (allowable deviation ≤ 0.3mm); 3. Maintain appropriate belt tension (refer to Honghuda's maintenance manual for specific values) to avoid slipping and excessive stress.

1

JC50 drawworks bearing (Bearing No: 22234)

Inner/outer ring: Bearing steel GCr15; Rolling elements: Bearing steel GCr15; Cage: Brass or steel

1. Wear and pitting of rolling elements and raceways caused by contaminated lubricating oil; 2. Bearing overheating and damage due to insufficient lubrication or excessive preload.

1. Use high-quality lubricating grease that meets the specification; regularly replace lubricating oil and filters to ensure oil cleanliness (NAS 8 class or higher); 2. Check the bearing temperature during operation (normal temperature ≤ 70°C); stop immediately if overheating occurs; 3. Install the bearing with the correct preload according to the manual; avoid excessive interference.

2

JC50 drawworks bearing (Bearing No: NU1032)

Inner/outer ring: Bearing steel GCr15; Rolling elements: Bearing steel GCr15; Cage: Brass or steel

1. Axial movement-induced wear caused by improper axial positioning; 2. Corrosion of bearing components due to moisture ingress in the lubrication system.

1. Check and ensure the reliability of the axial positioning device (such as lock nuts and end caps) during installation; 2. Maintain the sealing performance of the bearing housing to prevent moisture and dust ingress; 3. Regularly inspect the lubricating grease for water content; replace the grease if water is found.

3

JC50 drawworks bearing (Bearing No: 24032C)

Inner/outer ring: Bearing steel GCr15; Rolling elements: Bearing steel GCr15; Cage: Brass or steel

1. Severe wear caused by long-term heavy-load and high-speed operation; 2. Cage damage due to impact load during drawworks start-stop.

1. Strictly follow the load and speed limits of the drawworks; avoid overloading; 2. Operate the drawworks smoothly to reduce impact load during start-stop; 3. Conduct regular vibration testing on the bearing; replace the bearing if abnormal vibration occurs.

4

JC50 drawworks bearing (Bearing No: NU1040)

Inner/outer ring: Bearing steel GCr15; Rolling elements: Bearing steel GCr15; Cage: Brass or steel

1. Wear of raceways caused by misalignment of the rotating shaft; 2. Fatigue damage of rolling elements due to long-term alternating load.

1. Check the straightness and coaxiality of the rotating shaft before installation (allowable deviation ≤ 0.05mm); 2. Conduct non-destructive testing on the bearing every 12 months to detect internal fatigue; 3. Replace the bearing if any signs of fatigue (such as peeling of raceways) are found.

5

JC50 drawworks bearing (Bearing No: 23040C)

Inner/outer ring: Bearing steel GCr15; Rolling elements: Bearing steel GCr15; Cage: Brass or steel

1. Overheating and damage caused by poor heat dissipation in the bearing housing; 2. Wear caused by metal particles entering the bearing during maintenance.

1. Ensure the bearing housing has good heat dissipation; clean the heat dissipation fins regularly; 2. Maintain a clean maintenance environment; clean the installation interface and rotating shaft before installing the bearing; 3. Use special tools for bearing installation to avoid damaging the bearing.

6

JC50 drawworks bearing (Bearing No: 23140C)

Inner/outer ring: Bearing steel GCr15; Rolling elements: Bearing steel GCr15; Cage: Brass or steel

1. Wear of rolling elements caused by insufficient lubrication; 2. Corrosion and pitting due to chemical substances in the oilfield environment.

1. Regularly add lubricating grease to the bearing according to the maintenance schedule; 2. Apply anti-rust oil to the bearing surface during long-term shutdown; 3. Avoid direct contact between the bearing and corrosive substances (such as drilling fluid).

7

JC50 drawworks bearing (Bearing No: 22240C)

Inner/outer ring: Bearing steel GCr15; Rolling elements: Bearing steel GCr15; Cage: Brass or steel

1. Fatigue cracking of the cage caused by long-term high-speed rotation; 2. Wear of raceways caused by misalignment between the bearing and the shaft.

1. Check the bearing speed regularly; avoid overspeeding; 2. Adjust the alignment of the shaft and bearing housing in time if misalignment is found; 3. Replace the bearing immediately if the cage is damaged.

8

JC50 drawworks bearing (Bearing No: 22244C)

Inner/outer ring: Bearing steel GCr15; Rolling elements: Bearing steel GCr15; Cage: Brass or steel

1. Severe wear caused by heavy-load operation beyond the bearing's rated capacity; 2. Damage caused by impact load during emergency stop of the drawworks.

1. Strictly control the operating load of the drawworks; do not exceed the bearing's rated load; 2. Minimize emergency stops; if necessary, reduce the load first before stopping; 3. Regularly inspect the bearing for abnormal noise; replace the bearing if noise occurs.

9

JC50 drawworks bearing (Bearing No: N240)

Inner/outer ring: Bearing steel GCr15; Rolling elements: Bearing steel GCr15; Cage: Brass or steel

1. Wear of the inner ring caused by relative sliding between the bearing and the shaft; 2. Contamination-induced wear caused by dust entering the bearing.

1. Ensure the interference fit between the bearing and the shaft meets the specification; avoid excessive clearance; 2. Strengthen the sealing of the bearing housing; install dust-proof rings if necessary; 3. Clean the bearing regularly and replace the lubricating grease.

1

JC50 Drawworks oil seal (GB/T13871-92)

Seal lip: Nitrile rubber (NBR) or fluororubber (Viton); Skeleton: Carbon steel; Spring: Spring steel

1. Wear of the seal lip caused by friction with the rotating shaft; 2. Aging, hardening, and cracking of the rubber due to high-temperature operation.

1. Ensure the rotating shaft surface is smooth and free of burrs; polish if necessary; 2. Replace the oil seal every 12 months or if oil leakage is detected; 3. Use a professional seal installer to avoid damaging the seal lip during installation.

2

JC50 Drawworks oil seal (260x300x20, HG4-692-67)

Seal lip: Nitrile rubber (NBR); Skeleton: Carbon steel; Spring: Spring steel

1. Damage to the seal lip caused by foreign objects (such as metal particles) entering the sealing area; 2. Deformation of the oil seal skeleton due to improper installation.

1. Clean the installation area and rotating shaft thoroughly before installing the oil seal; 2. Install the oil seal in the correct direction (seal lip facing the oil side); 3. Ensure the installation hole is free of burrs and sharp edges to avoid damaging the skeleton.

3

JC50 Drawworks oil seal (240x280x18, HG4-692-67)

Seal lip: Nitrile rubber (NBR); Skeleton: Carbon steel; Spring: Spring steel

1. Wear of the seal lip due to excessive axial movement of the rotating shaft; 2. Corrosion of the skeleton caused by moisture ingress.

1. Check and ensure the axial movement of the rotating shaft is within the allowable range; 2. Maintain the sealing performance of the surrounding components to prevent moisture ingress; 3. Apply a thin layer of lubricating oil to the seal lip before installation to reduce initial friction.

4

JC50 Drawworks oil seal (190x230x18, HG4-692-67)

Seal lip: Nitrile rubber (NBR); Skeleton: Carbon steel; Spring: Spring steel

1. Aging and cracking of the rubber caused by long-term contact with incompatible lubricating oil; 2. Wear of the seal lip due to high-speed rotation.

1. Ensure the lubricating oil used is compatible with nitrile rubber; 2. Check the rotating speed of the shaft regularly; avoid overspeeding; 3. Replace the oil seal immediately if signs of rubber aging (such as hardening, cracking) are found.

5

JC50 Drawworks oil seal (180x220x16, HG4-692-67)

Seal lip: Nitrile rubber (NBR); Skeleton: Carbon steel; Spring: Spring steel

1. Damage to the seal lip caused by improper installation tools; 2. Wear of the seal lip due to dust and debris adhering to the shaft surface.

1. Use special tools for oil seal installation to avoid direct impact on the seal lip; 2. Clean the shaft surface before installation to remove dust and debris; 3. Install a dust-proof cover outside the oil seal if the working environment is dusty.

6

JC50 Drawworks oil seal (150x180x16)

Seal lip: Nitrile rubber (NBR); Skeleton: Carbon steel; Spring: Spring steel

1. Fatigue damage of the seal lip caused by long-term alternating load; 2. Deformation of the seal lip due to excessive temperature changes.

1. Avoid frequent and large temperature changes in the working environment; strengthen the cooling of the component; 2. Regularly inspect the oil seal for leakage; replace the oil seal every 12 months; 3. Ensure the oil seal is installed with the correct compression amount.

1

O Ring 25x2.65

Nitrile rubber (NBR) or fluororubber (Viton); Shore hardness 70±5

1. Compression set and aging caused by long-term compression and high-temperature exposure; 2. Cutting and damage caused by sharp edges in the installation groove.

1. Replace O rings every 12 months or if signs of hardening, cracking, or compression set are found; 2. Ensure the installation groove is free of burrs and sharp edges; 3. Store O rings in a cool, dry environment away from sunlight and ozone sources.

2

Mild steel board (JC501.05.04)

Q235 mild steel; surface painted or galvanized

1. Corrosion and rust caused by moisture and salt spray in the oilfield environment; 2. Deformation and bending caused by impact load.

1. Regularly inspect the surface paint/galvanizing layer; touch up paint or re-galvanize if damaged; 2. Avoid impact on the steel board during operation and maintenance; 3. Store spare steel boards in a dry and ventilated environment to prevent corrosion.

3

Oil Cup M10X1

Cup body: Glass or plastic; Thread: Carbon steel (zinc plated)

1. Breakage of the cup body caused by mechanical impact; 2. Thread wear and leakage caused by repeated unscrewing.

1. Handle with care to avoid impact on the cup body; 2. Tighten the oil cup gently during installation to avoid thread damage; 3. Check the seal between the oil cup and the base regularly; replace the seal if leakage occurs.

4

Steel wire Ø3

High-carbon steel or stainless steel; surface galvanized

1. Corrosion and rust caused by long-term exposure to the external environment; 2. Fatigue breakage caused by repeated bending.

1. Apply anti-rust oil to the steel wire surface regularly; 2. Avoid repeated bending of the steel wire during use; 3. Store spare steel wire in a dry environment; coil it neatly to avoid kinking.

5

Lock washer (JC501.03.26; JC501.04.16)

Spring steel 65Mn; surface phosphated

1. Loss of elastic tension caused by over-compression during installation; 2. Corrosion leading to brittle fracture.

1. Do not reuse lock washers that have lost elasticity; 2. Install the lock washer in the correct direction (the open end faces the direction of rotation) to ensure the anti-loosening effect; 3. Store spare lock washers in a dry environment to prevent corrosion.

6

R3/8 " Inner Jiont

Body: Carbon steel or stainless steel; Thread: Precision machined; Seal: Nitrile rubber

1. Thread wear and leakage caused by repeated assembly and disassembly; 2. Corrosion of the joint body caused by moisture and chemical substances.

1. Apply thread seal tape or anti-seize compound during installation; 2. Tighten the joint with a torque wrench according to the specified torque; 3. Regularly inspect the joint for leakage; replace the seal or the entire joint if necessary.