Heavy Diesel Mechanic – Field & Shop

CREW, INC.

Compton, CA

Pay: $30-$50/hr

Shift: Full time

**About Us**

We are an established grading contractor seeking a skilled, experienced **Heavy Diesel Mechanic** to join our team. You will be responsible for keeping our heavy earthmoving fleet—primarily **Caterpillar 637 and 657 twin-engine wheel tractor-scrapers**—running reliably in both our main shop and active field jobsites.

**Key Responsibilities**

• **Scraper Maintenance & Repair:** Perform diagnostics, troubleshooting, and mechanical repairs on Caterpillar 637 and 657 motor scrapers, as well as supporting grading equipment (dozers, motor graders, water pulls, and compactors).
• **Twin-Engine & Drivetrain Systems:** Service and rebuild tractor and scraper diesel engines, powershift transmissions, torque converters, differentials, and final drives.
• **Hydraulics & Hitch Systems:** Diagnose and repair high-pressure hydraulic systems, pumps, cylinders, control valves, and hoses controlling scraper bowls, aprons, ejectors, and cushion-hitch assemblies.
• **Diagnostics & Electrical:** Use Cat Electronic Technician (Cat ET) and multimeters to troubleshoot Tier 4 emissions/aftertreatment systems, wiring harnesses, and electronic controls.
• **Field & Shop Service:** Operate a company service truck for field breakdowns on active grading sites and perform major component rebuilds and preventive maintenance in the shop.
• **Wear Parts & Welding:** Inspect and replace cutting edges, router bits, push blocks, and wear components; perform light field welding and fabrication as needed.
• **Safety & Documentation:** Maintain accurate daily service logs, parts requests, and inspection reports while adhering to OSHA/MSHA and company safety standards.

**Qualifications**

• **Experience:** Minimum 3–5 years of hands-on experience diagnosing and repairing heavy earthmoving equipment; direct experience with **Cat 600-series scrapers (637/657)** is strongly preferred.
• **Technical Skills:** Proven proficiency in diesel engines, powershift transmissions, hydraulic schematics, and heavy equipment electrical systems.
• **Tools:** Must own a full set of personal hand and pneumatic tools suitable for heavy construction machinery.
• **Driver’s License:** Valid driver’s license with a clean driving record required; a **Class A or Class B CDL** (with hazmat/tanker endorsements for operating a lube/service truck) is a strong plus.
• **Work Conditions:** Ability to work outdoors in rugged jobsite conditions, lift up to 75 lbs, and occasionally work overtime or weekends to meet project schedules.

**Benefits & Compensation**

• **Compensation:** Hourly rate based on experience and certifications (DOE).
• **Field Support:** Fully equipped company service truck provided for field assignments.
• Medical/Dental/Vision insurance, 401(k) match, paid time off.

Pay: $30.00 - $50.00 per hour

Expected hours: 40.0 – 60.0 per week

Benefits:

• 401(k)
• 401(k) matching
• Dental insurance
• Health insurance
• Paid time off
• Retirement plan
• Vision insurance

Work Location: In person