Senin, 08 April 2019
Selasa, 19 Februari 2019
To keep street basketball arcade machines running at peak performance, maximize revenue, and extend equipment lifespans, arcade operators must implement a rigorous Preventative Maintenance (PM) and General Cleaning routine.
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| General cleaning bagian body luar mesin game |
Regular preventative maintenance allows technicians to identify minor wear and tear—such as loose bolts, frayed wire harnesses, or dirty sensor optics—and rectify them before they cause costly component failures or machine downtime during busy peak operating hours.
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| General cleaning bagian body luar mesin game |
The Core Objectives of General Cleaning & Inspection
┌─────────────────────────────────────────────────────────┐
│ PREVENTATIVE MAINTENANCE CYCLES │
└────────────────────────────┬────────────────────────────┘
│
┌─────────────────────┴─────────────────────┐
▼ ▼
[DAILY / WEEKLY CLEANING] [MONTHLY DEEP INSPECTION]
• Surface sanitation • Sensor calibration & gap check
• Reflector & lens wiping • Motor bolt torque verification
• Debris removal from track • Cable harness strain inspection
• Ball pressure check • Mechanical rail lubrication
Maintain Revenue Continuity: Prevent unexpected game failures (e.g., ball gate jams, scoring misses, or stationary rims in Stage 2).
Enhance Player Experience: Clean, well-lit, and responsive machines attract more plays and higher customer satisfaction.
Extend Component Lifespan: Removing dust, grit, and sweat prevents premature wear on motors, gears, bearings, and optical lenses.
Safety & Fire Prevention: Inspecting internal power supplies and wiring harnesses eliminates short-circuit and fire risks.
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| General cleaning bagian body luar mesin game |
🧼 Part 1: General Cleaning Protocol
Street basketball machines collect high amounts of dust, rubber residue from basketballs, hand oils, and environmental grime. Follow this step-by-step cleaning procedure:
1. Optical Sensors & Reflectors
Frequency: Daily to Bi-weekly
Tools Required: Microfiber cloth, Isopropyl alcohol (70%+), glass cleaner.
Procedure:
Carefully wipe the front lenses of both Infrared (IR) scoring sensors behind the rim.
Clean the reflector plate mounted opposite the sensors. Remove fingerprint oils and fine dust that can scatter the infrared light beam and cause missed scores.
Inspect and clean the proximity sensors on the ball gate assembly and Stage 2 limit stops.
2. Basketball Net, Rim, & Playfield Track
Frequency: Weekly
Tools Required: Mild detergent solution, damp microfiber cloth, dry towel.
Procedure:
Wipe down the steel rim frame and metal backboard cage to remove sweat and oils.
Clean the ball return ramp and gate channel. Accumulated dust inside the metal track creates friction, slowing ball return speeds or causing ball jams at the gate.
3. Cabinet Exterior, Acrylics, & Displays
Frequency: Daily
Tools Required: Anti-static acrylic cleaner, soft microfiber cloth.
Procedure:
Clean the front glass/acrylic art panels, score LED displays, and credit/timer displays.
Avoid harsh solvents (like acetone or unbuffered ammonia) on clear acrylics to prevent surface clouding or crazing.
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| Prefentife maintenance, sambil gmelakukan general cleaning, sambil melakukan inpeksi, dan melakukan perbaikan ringan, seperti mengencangkan baut-baut kendor, dan lainya |
🛠️ Part 2: Preventative Mechanical & Electrical Inspection
While performing general cleaning, technicians must conduct a structured physical inspection to identify early warning signs of hardware degradation.
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| Cleaning bagian CPU/ Logic Board, dengan hati-hati dikarenakan banyak komponen kecil dan part SMD |
+-----------------------------------------------------------------------------------+
| PREVENTATIVE INSPECTION CHECKLIST |
+----------------------+-----------------------------------+------------------------+
| Inspection Zone | Check Item | Corrective Action |
+----------------------+-----------------------------------+------------------------+
| Stage 2 Rim Motor | Check 3–4 motor mounting bolts | Tighten with Loctite |
| Ball Gate Mechanism | Check arm linkage & limit sensors | Adjust gap to 2mm |
| Wire Harnesses | Inspect flex points & connectors | Secure with zip-ties |
| Basketballs | Measure air pressure & surface | Inflate to 7–9 PSI |
| Power Supply (PSU) | Vacuum dust off cooling fans | Clean/Replace fan |
+----------------------+-----------------------------------+------------------------+
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| General cleaning bagian dalam mesin game, menggunakan vacum cleaner dan kuas kecil, dilakukan dengan teliti dan hati-hati |
1. Stage 2 Moving Rim Motor Inspection
Check Bolt Torque: Vibration from ball impacts frequently loosens the motor mounting bracket. Inspect all bolts and ensure blue threadlocker (Loctite 242) is applied.
Lubricate Linkage Joints: Apply a light layer of white lithium grease or Teflon spray to the horizontal sliding rails and crank arm pivot joints. Do not use heavy oil that attracts dust.
2. Ball Gate Assembly & Limit Switches
Check Cable Harness Strain: Inspect the wiring harness that moves with the gate lever. Look for cracked insulation or strained copper strands.
Verify Sensor Gap: Check that the inductive or limit switches sit approximately 2 mm away from the metal actuator plate when closed.
3. Basketball Condition & Air Pressure
Air Pressure: Maintain ball pressure between 7 to 9 PSI. Over-inflated balls place excessive stress on the rim frame and backboard, accelerating bolt loosening; under-inflated balls bounce poorly and ruin gameplay mechanics.
Surface Wear: Replace worn, smooth, or cracked basketballs to ensure consistent grip and predictable bouncing trajectories.
4. Power Supply Unit (PSU) & Mainboard Enclosure
Dust Removal: Use compressed air or an anti-static vacuum to blow out accumulated dust inside the power supply cooling fan and main logic board enclosure.
Terminal Tightness: Check terminal block screws on the 12V/24V DC power supply output to prevent high-resistance heating.
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| General cleaning bagian dalam mesin game, menggunakan vacum cleaner dan kuas kecil, dilakukan dengan teliti dan hati-hati |
📅 Recommended Preventative Maintenance Schedule
| Maintenance Task | Daily | Weekly | Monthly | Quarterly |
| Wipe exterior cabinet, side panels, & acrylics | X | |||
| Clean scoring IR sensors & reflector plates | X | |||
| Test Stage 1 to Stage 2 game scoring & rim swing | X | |||
| Inspect basketball air pressure & surface condition | X | |||
| Clean ball return track & metal gate channel | X | |||
| Inspect & torque Stage 2 rim motor mounting bolts | X | |||
| Lubricate rim slider rails & linkage joints | X | |||
| Check wire harness flex points & zip-tie security | X | |||
| Vacuum PSU cooling fans & mainboard electronics | X |
Summary: Master Street Basketball Maintenance Matrix
+-----------------------------------------------------------------------------------+
| STREET BASKETBALL MASTER MAINTENANCE & REPAIR MATRIX |
+-----------------------+-----------------------------+-----------------------------+
| Fault / Area | Primary Symptom | Corrective Maintenance Fix |
+-----------------------+-----------------------------+-----------------------------+
| Scoring System | Ball passes, zero score | Clean IR sensor & reflector |
| Ball Gate | Moves up/down infinitely | Fix broken wire / set 2mm |
| Stage 2 Rim | Stage 2 starts, rim static | Tighten motor bolts w/ blue |
| | | threadlocker (Loctite 242) |
| General Performance | Slow ball return / jamming | Clean ramp; inflate balls to|
| | | 7-9 PSI; grease rails |
+-----------------------+-----------------------------+-----------------------------+Minggu, 30 Desember 2018
Senin, 10 Desember 2018
Minggu, 02 September 2018
In the Hungry Dog arcade redemption game, balls are fed through a motorized gate mechanism into the mouth of the dog character or onto a scoring ramp. A frequent mechanical failure reported by arcade technicians is when the game starts and the motor activates, but balls fail to drop or descend into the play area.
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| Hungry dog. Bola tidak mau turun |
Fault Breakdown & Root Cause Analysis
Reported Fault: Balls remain trapped in the feeder hopper/chute and will not release during gameplay.
Root Cause: The ball retainer arm/latch (tahanan bola) has detached from its support bearing.
[Motor Rotates / Cable Pulls] ──> [Retainer Arm Disconnected from Bearing] ──> [Gate Remains Blocked] ──> [Balls Fail to Release]
How the Mechanism Functions
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| Diakibatkan dari tahanan bola terlepas dari bearing |
To control ball flow precisely and prevent multiple balls from jamming the intake at once:
Standard Operation: The ball retainer (tahanan bola) pivots on a sealed miniature ball bearing or bushing. When the gate motor energizes, it pulls a linkage rod attached to this retainer arm, lifting it smoothly to allow a single ball to drop.
Failure State: High-impact vibrations from falling balls, loose mounting set-screws, or worn retaining clips (E-clips/C-clips) cause the retainer arm to slide off or pop out of its bearing housing.
The Result: Without the bearing acting as a fixed pivot point, the motor linkage pulls against loose air or jams the arm sideways against the chute wall. The heavy retainer stays in its resting position, permanently blocking the balls from descending.
Step-by-Step Diagnostic & Mechanical Repair Process
Step 1: Access and Visual Inspection
Power Down & Safety: Turn off main power to the cabinet and unplug it to prevent unexpected motor activation while working inside the mechanism.
Open Cabinet Access: Open the front service door or top canopy assembly behind the main "Hungry Dog" character head to access the ball feeding chute.
Locate the Retainer Module: Inspect the pivot point where the metal ball retainer arm meets the support bracket. Look for a dislodged bearing, missing E-clip, or loose set-screw.
Step 2: Repair and Re-assembly
Clear the Jam: Carefully remove all trapped balls from the upper hopper to relieve physical pressure on the mechanism.
Inspect the Bearing: Check the ball bearing for physical damage, rust, or missing steel balls.
If undamaged: Clean old grease and dirt off the bearing race using 99% Isopropyl Alcohol (IPA) and apply fresh synthetic or lithium grease.
If damaged/seized: Replace it with a new miniature bearing of the same inner/outer diameter specifications.
Reattach the Retainer Arm:
Press the pivot shaft of the ball retainer arm firmly back into the inner race of the bearing.
Secure the assembly using a new E-clip / Circlip or tighten the shaft set-screw firmly using threadlocker (Loctite 242) to prevent future loosening caused by cabinet vibration.
Verify Linkage Clearance: Manually move the motor arm by hand. Ensure the retainer arm swings up and down smoothly through its full range of motion without scraping or binding against the plastic chute walls.
Prevention & Maintenance Tips for Gate Ball Assemblies
To avoid recurring ball release jams on Hungry Dog:
Vibration Protection: Apply a medium-strength threadlocker to all mounting bolts and set-screws along the motor linkage and bearing brackets.
Routine Lubrication: Apply a light layer of plastic-safe grease to the pivot points and bearing journals every 3 months.
Inspect Ball Condition: Worn, scratched, or sticky balls increase mechanical drag on the retainer arm. Periodically clean arcade balls or replace damaged ones to maintain smooth flow.
Summary Checklist for Ball Feed Issues
| Issue Identified | Primary Suspect | Quick Repair Action |
| Motor turns, but gate does not open | Retainer arm popped off bearing / disconnected linkage | Realign shaft into bearing; replace missing E-clip and apply threadlocker. |
| Motor buzzes loudly and stalls | Seized bearing or ball jammed under retainer arm | Free the physical obstruction; replace seized bearing if it doesn't spin freely. |
| Gate opens partially, balls roll slow | Weak motor voltage or stripped gearbox | Check power supply rail; inspect internal gearbox for stripped plastic gears. |
On physical redemption games like Happy Kangaroo—where players stomp, jump, or hit mechanical targets to bounce the kangaroo character and score points—a common issue reported by arcade floor operators is the score display failing to respond or register points during gameplay.
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| Score tidak merespon. Dikarenakan soket sensor ada yg terlepas |
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