step-by-step operational guide for the following heavy equipment units:

SANDVIK D245S (3 Units)

• Serial Number (SN): 733***
• Year of Manufacture (YOM): 2017, 2018, 2019

SANDVIK D245S – Rotary Blasthole Drill

Unit Overview

The Sandvik D245S is a diesel-powered, rotary blasthole drill designed for large-scale surface mining operations. It is capable of drilling large-diameter holes with high precision and stability.

Typical applications include:

• Production drilling
• Pre-split and buffer hole drilling
• Hard rock formations

Pre-Start Inspection

Before starting the Sandvik D245S, perform the following checks:

• Engine oil, coolant, and hydraulic oil levels
• Fuel level and fuel lines for leakage
• Air filters and dust suppression system
• Drill pipes, bit condition, and rotary head
• Hydraulic hoses and electrical connections
• Walkways, handrails, and emergency exits

Record all findings in the daily inspection log.

Start-Up Procedure

1. Ensure the machine is level and stabilizers are properly deployed
2. Enter the cabin using three-point contact
3. Adjust seat, mirrors, and control panels
4. Turn the master switch ON
5. Start the engine and allow it to idle until operating temperature is reached
6. Check system indicators and alarms on the display panel

Drilling Operation

• Position the drill accurately using GPS or site markers
• Lower the mast to vertical position and lock it
• Engage rotary head and apply controlled downforce
• Adjust rotation speed and feed pressure according to rock hardness
• Monitor penetration rate, torque, and vibration
• Activate dust control system during drilling

Professional Tip:
Maintain consistent parameters to reduce drill string wear and improve hole quality.

Shutdown Procedure

• Retract drill string fully
• Secure mast and rotary head
• Idle engine for cooling period
• Shut down engine and isolate power
• Conduct post-operation inspection