Z04020000018AA Mast Upper Section Parts Guide for SJ Petro-ZJ40

1

Mast upper section

Z04020000018AA

High-strength alloy steel (Q355B), welded per API 4F, shot-blasted for anti-corrosion, integrated structural ribs

1. Weld fatigue from repeated load cycles; 2. Corrosion from environmental exposure (rain/humidity); 3. Stress concentration at component connections.

1. Inspect welds quarterly via non-destructive testing; 2. Touch up anti-corrosion coating on damaged areas; 3. Ensure even load distribution during operation.

2

Side column (multiple)

P9942002AA, P9840519AA, P9870287AA

Alloy steel (Q355B), precision-extruded, reinforced for vertical load-bearing, anti-wear surface treatment

1. Tensile fatigue from drilling loads; 2. Wear at beam/ brace connection points; 3. Bending from lateral wind or rig vibration.

1. Check vertical alignment before each drilling cycle; 2. Lubricate connection points monthly; 3. Avoid overloading beyond OE-rated capacity.

3

Front leg (multiple)

Z04020600006AA, Z04020600004AA

Alloy steel (Q355B), telescopic design for adjustability, forged end connections, API 4F load-tested

1. Wear at telescopic joints; 2. Corrosion from ground moisture (during transport); 3. Bending from uneven ground placement.

1. Lubricate telescopic joints every 100 operating hours; 2. Level legs before deploying the mast; 3. Retract and clean after use in muddy conditions.

4

Rear leg (multiple)

Z04020700004AA, Z04020700003AA

Alloy steel (Q355B), same telescopic design as front legs, reinforced for rear mast loads

1. Same as front legs; 2. Additional stress from racking board weight; 3. Impact damage during mast lowering.

1. Inspect leg connections to the mast monthly; 2. Avoid sudden impacts when lowering the mast; 3. Follow same lubrication/cleaning protocols as front legs.

5

Bottom beam (multiple)

Z04020300001AA, P9840527AA, P9942005AA, P9840537AA, P9840539AA

Alloy steel (Q355B), structural ribs for reinforcement, precision-cut for dimensional accuracy, anti-corrosion coating

1. Bending from uneven load distribution; 2. Wear at side column connections; 3. Corrosion from drilling fluid splatter.

1. Ensure beam connections are torqued to OE specs; 2. Clean off drilling fluid promptly after operations; 3. Inspect for warping quarterly.

6

Crown seat

Z04020400014AA

Alloy steel (4140), heat-treated for wear resistance, precision-machined to fit crown block components

1. Wear from crown block rotation; 2. Stress fatigue from top-load pressure; 3. Corrosion from environmental exposure.

1. Lubricate contact surfaces with high-temperature grease; 2. Inspect for wear monthly; 3. Replace if surface is severely scored or cracked.

7

Channel steel (multiple)

P9820180AA, P9840528AA

Alloy steel (Q235B), C-shaped structural design, welded for lateral reinforcement, anti-rust coating

1. Weld fatigue from vibration; 2. Wear at component contact points; 3. Bending from lateral stress.

1. Inspect welds quarterly; 2. Avoid using channel steel as a pry point; 3. Clean and touch up anti-corrosion coating as needed.

1

Side brace (multiple)

P9840517AA, P9841767AA, P9840518AA, P9841768AA, P9841772AA, P9841773AA, P9840521AA, P9840522AA, P9840523AA, P6004417AA, P9840524AA, P9942004AA

Alloy steel (Q355B), lightweight yet rigid, threaded/welded connections, API 4F compliant

1. Fatigue from repeated vibration; 2. Loosening of threaded connections; 3. Wear at hinge or bolt joints.

1. Tighten threaded braces monthly; 2. Inspect welds on welded braces quarterly; 3. Apply anti-seize compound to threaded joints.

2

Bottom brace (multiple)

P9920689AA, P6005355AA, P9840532AA, P9840533AA, P9840536AA, P9840538AA, P6005359AA

Alloy steel (Q355B), heavy-duty for bottom joint reinforcement, anti-wear surface treatment

1. Stress concentration at mast base connections; 2. Corrosion from ground moisture; 3. Wear from component movement.

1. Ensure proper alignment with mast base components; 2. Use corrosion-resistant pads between braces and ground; 3. Inspect for bending monthly.

3

Brace, doorframe (multiple)

P6005356AA, P6005357AA, P9942006AA, P9942007AA

Alloy steel (Q355B), doorframe-specific bracing, welded for rigidity, anti-corrosion coating

1. Wear from doorframe movement; 2. Weld fatigue from vibration; 3. Impact damage from tool handling near the doorframe.

1. Inspect doorframe alignment regularly; 2. Avoid slamming the doorframe to prevent impact; 3. Check welds during quarterly maintenance.

4

Reinforced support (multiple)

P9840530AA, P9840531AA

Alloy steel (Q355B), forged support structure, integrated ribs for load distribution, heat-treated

1. Stress fatigue from repeated load cycles; 2. Wear at contact points with heavy components; 3. Corrosion from environmental exposure.

1. Never exceed rated load capacity; 2. Inspect contact surfaces for wear monthly; 3. Apply anti-wear lubricant to high-contact areas.

5

Stiffener (multiple)

P6004424AA, P6004425AA

Alloy steel plate (Q355B), precision-cut, welded to thin-walled components, anti-corrosion treatment

1. Weld fatigue from vibration; 2. Wear from adjacent component movement; 3. Bending from uneven pressure.

1. Inspect welds quarterly; 2. Ensure stiffeners are properly aligned with supported components; 3. Replace if cracked or bent.

6

Support, racking board

4315620045

Alloy steel (Q355B), racking board-specific support, reinforced for pipe storage loads, API 7K compliant

1. Wear from drilling pipe contact; 2. Stress fatigue from overloading pipe storage; 3. Corrosion from drilling fluid.

1. Do not exceed rated pipe storage capacity; 2. Inspect for bending monthly; 3. Clean off drilling fluid to prevent corrosion.

7

Vertical plate (multiple)

P6004423AA, P9960460AA

Alloy steel plate (Q355B), vertical structural reinforcement, welded to beams/columns

1. Weld fatigue from vertical load stress; 2. Corrosion from environmental exposure; 3. Impact damage during maintenance.

1. Inspect vertical alignment and welds quarterly; 2. Keep surfaces clean and dry; 3. Avoid tool impacts near vertical plates.

8

Round steel L=64

P6015876AA

Alloy steel (Q235B), precision-cut to 64mm length, used for localized reinforcement, zinc-plated

1. Wear at connection points; 2. Corrosion from moisture; 3. Bending from lateral force.

1. Ensure tight connections to reinforced components; 2. Inspect for bending during monthly checks; 3. Replace if zinc coating is worn.

1

Bolt M20X45

4313100020

High-tensile steel (10.9 grade), heat-treated, zinc-plated for corrosion resistance, precision-threaded

1. Loosening from rig vibration; 2. Thread wear from repeated assembly/disassembly; 3. Corrosion-induced weakening.

1. Torque to OE specifications (140-170 N·m); 2. Use spring washers to prevent loosening; 3. Replace corroded or stripped bolts immediately.

2

Bolt M16X35

4313100016

High-tensile steel (10.9 grade), zinc-plated, compatible with M16 nuts, API 7K compliant

1. Same as M20X45 bolts; 2. Additional shear stress in light-load connections; 3. Thread damage from over-torquing.

1. Torque to 80-100 N·m; 2. Avoid over-torquing to prevent thread damage; 3. Inspect monthly for loosening.

3

Spring washer 20

4313100020

Carbon steel (65Mn), heat-treated for elasticity, zinc-plated, compatible with M20 bolts

1. Fatigue from repeated compression cycles; 2. Corrosion from moisture; 3. Deformation from over-torquing.

1. Replace washers when re-torquing bolts; 2. Inspect for deformation before installation; 3. Store in dry areas to prevent rust.

4

Spring washer 16

4313100016

Carbon steel (65Mn), heat-treated, zinc-plated, compatible with M16 bolts

1. Same as spring washer 20; 2. Additional wear from smaller bolt size; 3. Failure from mismatched bolt/washer pairs.

1. Use only with M16 bolts; 2. Replace after each bolt removal; 3. Discard deformed washers.

5

Nut M12

4309300012

High-tensile steel (10 grade), zinc-plated, precision-threaded, compatible with M12 fasteners

1. Thread wear from bolt interaction; 2. Corrosion from moisture; 3. Stripping from over-torquing.

1. Torque to OE specs for M12 fasteners; 2. Replace if threads are stripped; 3. Pair with compatible spring washers.

6

Set screw, cylinder

4309300012

High-tensile steel (10.9 grade), M12 thread, heat-treated, anti-seize coating

1. Thread wear from repeated adjustments; 2. Corrosion from hydraulic fluid; 3. Loosening from cylinder vibration.

1. Apply anti-seize compound before installation; 2. Tighten to cylinder manufacturer specs; 3. Inspect monthly for loosening.

7

Locking pin seat

P9840525AA

Alloy steel (Q355B), precision-machined for locking pin fit, hardened surface, anti-corrosion coating

1. Wear from locking pin friction; 2. Corrosion from moisture; 3. Impact damage during pin insertion/removal.

1. Lubricate with anti-corrosion grease; 2. Inspect for wear monthly; 3. Avoid forcing the locking pin into the seat.

1

Seat plate (multiple)

P6004418AA, P6004419AA, P6004420AA, P6004422AA, 4315616035

Alloy steel (Q355B), flat design for component mounting, anti-wear surface treatment, welded/bolted

1. Wear from component mounting/dismounting; 2. Corrosion from environmental exposure; 3. Bending from uneven component weight.

1. Ensure components are mounted evenly; 2. Clean plate surfaces regularly; 3. Inspect for bending during monthly checks.

2

Base plate (multiple sizes)

P9840529AA, P9840534AA, P6216431AA, P6015876AA

Heavy-duty alloy steel plate, forged for rigidity, zinc-plated for corrosion resistance, size-optimized

1. Wear from ground friction during transport; 2. Corrosion from moisture; 3. Deformation from uneven ground pressure.

1. Clear debris from ground before placement; 2. Inspect for deformation monthly; 3. Replace zinc coating if worn.

3

Top plate

P6216431AA

Alloy steel (Q355B), top-section mounting plate, reinforced for crown seat loads, anti-corrosion coating

1. Wear from crown seat contact; 2. Stress fatigue from top loads; 3. Corrosion from environmental exposure.

1. Ensure crown seat is properly aligned; 2. Inspect for wear monthly; 3. Clean and touch up anti-corrosion coating as needed.

4

Plug plate 110X11

P9870286AA

Alloy steel (Q235B), precision-cut to 110×11mm, used to seal openings, anti-corrosion coating

1. Wear from installation/removal; 2. Corrosion from moisture ingress; 3. Damage from improper handling.

1. Install/remove gently to avoid bending; 2. Ensure tight seal to prevent moisture; 3. Replace if cracked or worn.

5

Threading pipe (multiple)

P9840520AA, Z04020800004AA

Seamless alloy steel pipe (20#), precision-threaded, heat-treated for strength, API 5L compliant

1. Thread wear from repeated connections; 2. Corrosion from fluid contact; 3. Stress cracking from vibration.

1. Apply anti-seize compound to threads; 2. Flush pipe after use to remove debris; 3. Inspect threads for wear monthly.

6

Stairs

P9840522AA

Alloy steel (Q235B), welded stair structure, anti-slip steps, anti-corrosion coating, API safety compliant

1. Wear from personnel access; 2. Weld fatigue from vibration; 3. Corrosion from environmental exposure.

1. Inspect steps for anti-slip wear monthly; 2. Check welds quarterly; 3. Keep stairs clear of debris to prevent slips.

7

Tray, traveling block

Z04020500005AA

Alloy steel (Q355B), tray design for traveling block components, reinforced edges, anti-wear surface

1. Wear from component movement; 2. Corrosion from hydraulic fluid; 3. Impact damage during maintenance.

1. Clean hydraulic fluid leaks promptly; 2. Inspect for edge damage monthly; 3. Avoid placing heavy tools on the tray.

8

Loading box

P7100015AA

Alloy steel (Q355B), storage box for small parts/tools, welded to the mast, weather-resistant

1. Wear from repeated opening/closing; 2. Corrosion from environmental exposure; 3. Impact damage from tool handling.

1. Inspect hinges and latches monthly; 2. Keep box closed to prevent moisture ingress; 3. Avoid overloading with heavy tools.

9

Fixed seat (multiple)

P9840526AA, P5000014AA

Alloy steel (Q355B), fixed mounting for cylinders/components, precision-machined, anti-corrosion coating

1. Wear from cylinder/component movement; 2. Stress fatigue from pressure; 3. Corrosion from hydraulic fluid.

1. Inspect cylinder alignment monthly; 2. Clean off hydraulic fluid leaks; 3. Replace if seat is worn or cracked.

10

Guiderails

P9910067AA

Alloy steel (Q355B), rail design for component guidance, anti-wear surface, anti-corrosion coating

1. Wear from component sliding; 2. Corrosion from environmental exposure; 3. Bending from impact.

1. Lubricate rails monthly with high-temperature grease; 2. Inspect for bending during quarterly checks; 3. Avoid tool impacts on rails.

11

Raising limiting piece

Z04020100001AA

Alloy steel (Q355B), mast raising limit, heavy-duty impact resistance, hardened surface

1. Impact damage during mast raising; 2. Wear from repeated limit activation; 3. Corrosion from environmental exposure.

1. Inspect after each mast raising; 2. Check for deformation or cracks; 3. Replace if impact damage is severe.

Are these parts exclusive to the SJ Petro-ZJ40 truck-mounted drilling rig?

Yes, all parts are exclusively engineered for the SJ Petro-ZJ40 truck-mounted drilling rig, matching the Z04020000018AA mast upper section. They comply with OE specs and API 4F/7K standards to ensure perfect fit and structural safety.

How often should side braces be inspected and tightened?

Inspect and tighten side braces monthly for general operations; shorten to biweekly for rigs in high-vibration environments. This follows API 4F maintenance guidelines to prevent mast instability.

What lubricant is recommended for telescopic leg joints?

Use high-temperature, lithium-based grease for telescopic leg joints (front/rear legs). Lubricate every 100 operating hours to reduce wear, prevent corrosion, and ensure smooth extension/retraction.