ZJ40 Truck-mounted Drilling Rig-SJ Petro-3

1

Steering power assisting lines (Z07080000003AA)

High-pressure steel wire braided hydraulic hose; 304 stainless steel fittings; rubber damping sleeves

1. Hose wear and cracking due to frequent bending during steering operations; 2. Fitting corrosion caused by moisture and road debris during transportation

1. Ensure the hose bending radius is not less than 10 times the hose diameter; 2. Install protective sleeves at positions prone to friction and inspect fittings for tightness monthly

2

Latch pin cylinder lines (Z07320000004AA)

PTFE-lined hydraulic hose; brass fittings; aluminum alloy pipe clamps

1. Hose lining damage due to high-pressure hydraulic oil impact during latch pin operation; 2. Pipe clamp loosening caused by rig vibration during drilling

1. Monitor hydraulic pressure to avoid exceeding the hose's rated limit; 2. Use locking pipe clamps and retighten every 150 operating hours

3

Latch pin cylinder (Z07320000005AA)

27SiMn alloy steel cylinder barrel; chrome-plated piston rod; nitrile rubber seals

1. Piston rod scratches from collision with mast components during extension/retraction; 2. Seal failure caused by contaminated hydraulic oil

1. Install a protective cover on the piston rod and clear obstacles before operation; 2. Replace hydraulic oil and filters according to the maintenance schedule and test oil cleanliness regularly

4

Hydraulic pump lines (Z08090000001AA)

High-pressure hydraulic rubber hose; 316 stainless steel fittings; steel wire reinforcement

1. Hose damage due to pressure surges during hydraulic pump startup; 2. Fitting corrosion caused by long-term exposure to drilling fluid and moisture

1. Start the hydraulic pump smoothly to avoid sudden pressure increases; 2. Apply anti-corrosion grease to fittings monthly and install splash guards

5

Throttle shutdown lines (Z08030000002AA)

Oil-resistant rubber hose; brass fittings; stainless steel (304) clips

1. Hose aging and cracking due to high-temperature radiation from the engine; 2. Fitting loosening caused by engine vibration

1. Install heat shields between the hose and the engine; 2. Retighten fittings quarterly and replace aging hoses immediately if cracks are found

1

Schematic diagram of air system (Z08280000170AA) [Auxiliary Part]

Air-resistant rubber hoses; brass fittings; stainless steel (316) clips; PVC protective sleeves

1. Hose aging due to long-term exposure to sunlight and temperature fluctuations; 2. Fitting corrosion caused by moisture in the air

1. Avoid direct sunlight on hoses by using protective covers; 2. Drain moisture from the air system daily and inspect fittings for corrosion monthly

2

Chassis air system diagram (Z08270000019AA) [Auxiliary Part]

High-pressure air rubber hose; 304 stainless steel pipes; aluminum alloy pipe clamps

1. Pipe wear due to friction with chassis components during transportation; 2. Pipe clamp corrosion caused by road salt and moisture (in cold areas)

1. Use rubber gaskets between pipes and chassis to reduce friction; 2. Paint pipe clamps annually and clean chassis pipes regularly

3

Differential lock lines (Z08120000002AA)

Nitrile rubber air hose; brass fittings; steel wire clips

1. Hose damage due to vibration during off-road transportation; 2. Fitting air leakage caused by improper installation torque

1. Secure hoses with binding straps to reduce vibration; 2. Use torque wrenches to fasten fittings to OEM-specified torque and check air tightness weekly

4

Deck frame air lines (Z08030000002AA)

High-pressure air rubber hose; 316 stainless steel fittings; rubber damping pads

1. Hose wear due to friction with deck equipment during operation; 2. Damping pad aging caused by long-term load bearing

1. Install protective sleeves at friction points; 2. Replace damping pads every 6 months and inspect hoses for wear monthly

5

Cab lines (Z08150000001AA)

Food-grade rubber air hose (for cab environment); brass fittings; plastic pipe clamps

1. Hose bending fatigue due to frequent cab door opening and closing; 2. Fitting loosening caused by cab vibration

1. Arrange hoses to avoid contact with cab door hinges; 2. Retighten fittings quarterly and check for air leakage

6

Drawworks lines (Z08060000002AA)

Heat-resistant rubber air hose; 304 stainless steel fittings; steel pipe clamps

1. Hose aging due to high-temperature radiation from the drawworks; 2. Fitting corrosion caused by drilling fluid splashing

1. Install heat shields between hoses and drawworks; 2. Clean fittings regularly and apply anti-corrosion grease

7

Air suspension lines (Z08130000003AA)

High-pressure steel wire braided air hose; brass fittings; rubber protective sleeves

1. Hose wear due to frequent suspension expansion and contraction; 2. Fitting air leakage caused by road vibration

1. Ensure the hose has sufficient length to accommodate suspension movement; 2. Check air tightness of the suspension system weekly and retighten fittings if necessary

8

Front drive lines (Z08340000001AA)

Nitrile rubber air hose; 316 stainless steel fittings; aluminum alloy pipe clamps

1. Hose damage due to friction with front drive components; 2. Pipe clamp loosening caused by off-road vibration

1. Install protective covers on hoses; 2. Inspect pipe clamps monthly and retighten if loose

9

Carrier brake lines (Z08110000002AA)

High-pressure air brake hose (complying with DOT standards); brass fittings; stainless steel (304) clips

1. Hose wear due to long-term use and road debris impact; 2. Fitting corrosion caused by moisture and road chemicals

1. Inspect hoses for wear and cracks weekly; 2. Replace hoses every 2 years (or as per OEM schedule) and apply anti-corrosion grease to fittings

10

Rotary table lines (Z08070000001AA)

Heat-resistant and oil-resistant rubber air hose; brass fittings; steel wire clips

1. Hose damage due to high-temperature and oil contamination near the rotary table; 2. Fitting loosening caused by rotary table vibration

1. Use heat-resistant and oil-resistant hoses that meet API standards; 2. Retighten fittings every 100 operating hours and clean hoses of oil stains regularly

11

Air compressor assembly (Z08390000002AA)

Cast iron (HT250) compressor body; aluminum alloy cylinder head; copper alloy cooling pipes

1. Cylinder wear due to dust and debris in the intake air; 2. Cooling pipe corrosion caused by scale accumulation

1. Replace the air filter regularly and ensure the intake air is clean; 2. Clean the cooling system every 6 months and add scale inhibitor to the cooling water

12

Spinner lines (Z08180000001AA)

Nitrile rubber air hose; brass fittings; plastic protective sleeves

1. Hose wear due to friction with the spinner during operation; 2. Fitting air leakage caused by spinner vibration

1. Install hoses away from the spinner's rotating parts; 2. Check air tightness weekly and replace worn protective sleeves

13

Crown-o-matic air cylinder (Z08200000001AA)

27SiMn alloy steel cylinder; chrome-plated piston rod; Viton rubber seals

1. Piston rod corrosion due to outdoor rain and humidity; 2. Seal failure caused by high-pressure air and temperature changes

1. Cover the cylinder with a waterproof tarpaulin when idle; 2. Use high-temperature and high-pressure resistant seals and inspect for air leakage monthly

14

Valve saver (Z08240000001AA)

Brass valve body; stainless steel (304) internal components; nitrile rubber gaskets

1. Valve body corrosion caused by moisture in the air; 2. Gasket wear due to frequent valve opening and closing

1. Drain moisture from the air system daily to reduce corrosion; 2. Replace gaskets every 6 months and inspect valve operation regularly

1

Wire connection diagram of cab (Z09000000150AA-AED) [Auxiliary Part]

Copper core wire (PVC insulation); brass terminals; flame-retardant plastic wire ducts

1. Wire insulation aging due to high-temperature in the cab; 2. Terminal corrosion caused by moisture in the cab

1. Ensure the cab ventilation system is functional to reduce temperature; 2. Apply anti-corrosion grease to terminals and inspect wire connections monthly

2

Wire harness of chassis (Z09000000150AA-AED)

Copper core wire (cross-linked polyethylene insulation); 304 stainless steel terminals; rubber wire sleeves

1. Wire sleeve wear due to friction with chassis components during transportation; 2. Wire corrosion caused by road moisture and salt

1. Secure the wire harness with plastic clips to avoid friction; 2. Wrap the wire harness with waterproof tape at exposed positions and inspect quarterly

3

Wire harness of engine (Z09000000150AA-AED)

Heat-resistant copper core wire (PTFE insulation); brass terminals; heat-resistant rubber sleeves

1. Wire insulation damage due to high-temperature engine radiation; 2. Terminal loosening caused by engine vibration

1. Install heat shields between the wire harness and engine; 2. Use locking terminals and inspect wire connections every 100 operating hours

4

Driller's control box harness (Z09000000150AA-AED)

Copper core wire (PVC insulation); gold-plated terminals; flame-retardant plastic wire ducts

1. Wire wear due to frequent opening and closing of the control box; 2. Terminal oxidation caused by moisture in the air

1. Arrange wires neatly to avoid pinching when closing the control box; 2. Keep the control box dry and clean, and inspect terminals for oxidation monthly

5

Front wire connection plate terminal layout diagram (Z09000000150AA-AED) [Auxiliary Part]

Copper core wire; 304 stainless steel connection plate; brass terminals

1. Connection plate corrosion caused by outdoor moisture and dust; 2. Terminal loosening caused by rig vibration

1. Install a waterproof cover on the connection plate; 2. Retighten terminals quarterly and apply anti-corrosion grease

1

Self-controlled pulley (Z16020000002AA)

20CrMnTi alloy steel pulley body; GCr15 bearing steel; polyurethane wear-resistant lining

1. Lining wear due to long-term friction with steel wire rope; 2. Bearing damage caused by dust and moisture intrusion

1. Apply lithium-based grease to bearings every 100 operating hours; 2. Install dust covers on the pulley and inspect lining wear monthly

2

YG250 hook assembly (Z16120000012AA)

42CrMo alloy steel hook body; 20CrNiMo alloy steel locking pin; anti-corrosion paint coating

1. Hook body fatigue cracking due to repeated hoisting load cycles; 2. Locking pin wear caused by frequent opening and closing

1. Conduct non-destructive testing (NDT) on the hook body every 6 months; 2. Apply lubricating grease to the locking pin monthly and replace if worn

3

Traveling block and hook assembly (Z16120000045AA)

42CrMo alloy steel traveling block body; 20CrMnTi alloy steel sheaves; GCr15 bearings

1. Sheave groove wear due to long-term friction with steel wire rope; 2. Bearing damage caused by insufficient lubrication and vibration

1. Check the steel wire rope alignment to avoid uneven wear on sheaves; 2. Inject lubricating grease into bearings every 150 operating hours and inspect sheave wear quarterly

4

Traveling block assembly (Z16120100016AA)

42CrMo alloy steel frame; 20CrMnTi alloy steel sheaves; stainless steel (304) fasteners

1. Frame weld cracking due to high hoisting loads; 2. Fastener corrosion caused by outdoor moisture and drilling fluid

1. Conduct NDT on welds every 6 months; 2. Apply anti-corrosion grease to fasteners and retighten quarterly

5

ZP275 rotary table assembly (Z16140000004AA)

45# carbon steel rotary table body; 20CrNiMo alloy steel gears; copper alloy bushings

1. Gear wear due to high-torque drilling operations; 2. Bushing wear caused by contaminated lubricating oil

1. Replace lubricating oil and filters according to the maintenance schedule; 2. Inspect gear meshing condition quarterly and adjust if necessary

6

Mud board (Z16180000028AA)

Q235B carbon steel plate; anti-corrosion paint coating; rubber anti-collision strips

1. Plate corrosion caused by long-term contact with drilling mud; 2. Anti-collision strip aging and cracking due to sun exposure

1. Clean mud from the board after each drilling operation and touch up anti-corrosion paint; 2. Replace anti-collision strips every 6 months