How to Use Remote Risk-Control Lock? Cut Fuel and Power on Rental Expiry

The biggest risk in rental isn't broken equipment — it's non-return at expiry and unpaid bills. Traditional collection via phone and site visits is slow and has no enforcement. Remote lock gives rental operators their first real "hard lever" — at expiry, one platform command tells the T-BOX relay to cut the starter circuit; the machine won't start. This guide details how to use JGY's risk-control lock.

Hardware Prerequisite: Pick the Right T-BOX

Not every T-BOX can lock. Locking depends on relay output (DO) — only relay-equipped models can cut fuel/power remotely. Among the three JGY T-BOX models:

So for rental, you must pick the enhanced CTF. See the T-BOX selection guide.

The relay output (DO+/DO-) typically connects to:

• Starter circuit: Cuts ignition/start (most common)
• Fuel solenoid: Cuts fuel (common on diesel)
• Hydraulic control: Cuts motion (common on aerial platforms)

Which circuit depends on the machine type and the installer/OEM decision.

Two Lock Modes

JGY supports two modes, best used together:

1. Automatic Lock (Rule-Triggered)

Triggered automatically on expiry/non-payment, no manual intervention. Suited to scaled, standardized rental.

2. Manual Remote Lock (Human-Triggered)

Owner/dispatcher issues from the app/platform. Suited to special/temporary cases.

Automatic Lock Configuration Tutorial

Step 1: Set Renewal Reminders

In the JGY platform Finance Center → Renewal Management:

1. Open the device and set the "expiry date."
2. Configure reminder rules:
   • 7 days before: In-platform reminder
   • 3 days before: App push + SMS
   • 1 day before: Phone reminder (manual)
3. Save.

This brings renewals into view early — most customers renew proactively, avoiding the confrontation of a direct lock.

Step 2: Configure Auto-Lock on Expiry

In Finance Center → Risk-Control Tasks:

1. Create a new task, type "auto-lock on expiry."
2. Select target devices (batch supported) or device groups.
3. Set the trigger: expiry date + grace period (recommend 1–3 days).
4. Set the action: automatically issue lock command.
5. Enable the task.

The grace period matters: bank transfer delays or business travel may delay renewal. A 1–3 day grace reduces disputes from accidental locks.

Step 3: Risk-Control Audit

All lock/unlock operations are logged in Finance Center → Risk-Control Records:

• Trigger time, reason (expiry/non-payment/manual)
• Operator (system/user)
• Device response status
• Unlock time, operator

This audit trail is the basis for traceability, compliance, and dispute resolution.

Manual Remote Lock Tutorial

For special cases (default, theft, dispute), issue a manual lock:

App

1. Open the JGY app, go to "Devices."
2. Find the device, open its detail page.
3. Tap "Remote Control → Lock."
4. Confirm the command and enter a reason (required).
5. The platform dispatches; the T-BOX cuts fuel/power.

Web

1. Log in, go to Device Management → Device Detail.
2. In "Overview & Control," click "Lock."
3. Confirm and enter a reason.
4. Dispatch and wait for device response.

Response status (locked/no response/failed) returns in real time. Weak-signal areas may take a few minutes.

Unlock Flow

After renewal or resolution, unlock to restore use:

1. Renewal/payment confirmed (auto) or manually.
2. In the risk-control task or device detail, "Unlock."
3. The T-BOX receives and restores the starter circuit.
4. The unlock is logged.

Auto-lock can be linked to renewal status: after renewal, auto-unlock without manual steps. Recommend enabling "auto-unlock on renewal" in the risk task.

Best Practices for Lock Strategy

Tiered Locking

Don't lock fully on day one. Use tiers:

• Tier 1 (7 days before expiry): Reminder only, no lock.
• Tier 2 (expiry day): Restrict working hours (e.g., 2 hours/day) — pressure without total shutdown.
• Tier 3 (expiry + grace): Full lock.

Tiered locking reduces confrontation and leaves room for negotiation.

Pre-Lock Communication

Locking isn't the goal — collection is. Before locking:

• Notify the customer by phone/SMS (in writing)
• State the unlock conditions (amount, payment method)
• Give reasonable time

A sudden lock invites backlash, even malicious equipment damage.

Anti-Tamper

Some customers may try to remove the T-BOX to evade the lock. Pair with electronic fence tamper alerts: a removed or powered-off T-BOX triggers a high-priority alert, killing malicious behavior early.

Common Issues

Q: Does locking make the machine completely unable to start? A: Depends on which circuit the relay controls. Starter = no ignition; fuel = no fuel; hydraulic = no motion. The effect is set by installation.

Q: Can weak-signal devices be locked? A: Yes, with delay. The command executes once the T-BOX reconnects. For critical devices, configure offline policy (e.g., local expiry cache).

Q: What if the customer complains about an accidental lock? A: Risk-control records have full audit. If accidental (e.g., payment not yet posted), unlock immediately and apologize.

Q: Does locking damage equipment? A: No. It only cuts the starter/fuel/hydraulic circuit — no hardware impact. After unlock, normal use resumes.

Risk-Control Lock Configuration Checklist

• T-BOX is relay-equipped enhanced CTF
• Relay correctly wired to starter/fuel/hydraulic
• Renewal reminders set (7/3/1 days)
• Auto-lock task enabled (with 1–3 day grace)
• Auto-unlock on renewal enabled
• Risk-control records queryable
• Both app and web can operate
• Tamper alerts linked

Follow this checklist and rental risk control finally has teeth. For more lock tactics and risk-control plays, see device management or contact us.