Allis-Chalmers 300 & 400 Series Lawn and Garden Tractors Service Manual

Diagnostic procedures and component service for Allis-Chalmers 300 & 400 Series tractors. Documents paper handling and control panel diagnostics. Part No. 9003456

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Document Details

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Document Number / Seller:
30230 / Sarah Cooper
File Size:
15.18 MB
File Type:
PDF
Language:
English
Printable:
Yes
Category:
Lawn and Garden Tractor
Last updated / verified
Jun 5, 2025

Models Covered & Key Technical Specifications

Essential Reference Installation Manual: Allis-Chalmers 300 & 400 Series Lawn and Garden Tractors Service Manual - Comprehensive Troubleshooting & Maintenance Guide Reference-Archive

Allis-Chalmers 300 Series & 400 Series Garden Tractors (9003456) -- 1976 Essential Reference Installation Manual | Library System Output Rating: 10 HP @ 3600 RPM establishes the engine's maximum power output. Maximum Cooling Specs: Air Cooled specification ensures efficient heat dissipation across all models. Measured Print Rate: Not Applicable to this equipment type. Critical Locking Torques: 22 ft-lbs for spark plug torque ensures proper fitment. Universal Load Capacity: 1050 lbs maximum for overload clutch settings. Technical Technical Specs: 4-Cycle engine configuration for reliable operation.

Professional Workshop Service Manual & Technical Specifications

Essential Reference Installation Manual: Allis-Chalmers 300 & 400 Series Lawn and Garden Tractors Service Manual - Comprehensive Troubleshooting & Maintenance Guide Reference-Archive

Year-Coverage: Allis-Chalmers 300 & 400 Series Tractors // Reference-Category: Lawn and Garden Tractor / Hydraulic Logic // Year-Coverage: Service Manual

TOP Performance-Element Baseline Framework
Engine Horsepower 10-16 HP 3600 RPM
Bore x Stroke 3.25"x3.25" to 2.75"x3.25" Varies by Model
Weight 754-894 lbs Varies by Model
Fuel Tank Capacity .9 to 1.5 Gallons Varies by Model
Oil Capacity (Quart) 2 Quarts Varies by Model

Providing a structural breakdown of:

Reference data is included for the engine, hydraulics, adjustments, chassis, power train, and electrical systems. This manual covers detailed diagrams, part numbers, and essential service procedures.

Diagnostic procedures are covered for hard starting, loss of power, occasional "skip" at high speed, overheating, idle problems, and backfiring issues. The document includes troubleshooting guides for common engine problems.

This manual includes a comprehensive overview of the hydrostatic transmission and its components, including disassembly and reassembly instructions. It details the procedures for inspecting and repairing the hydraulic system.

Wiring diagrams for both magneto ignition and breaker point ignition systems are provided, along with common electrical terms and troubleshooting guidance for the electrical system.

...documents torque specifications for spark plug to ensure proper flange face sealing.

FAQ

Assess the **critical** calibration settings for the governor arm and throttle linkage. keyboard_arrow_down

14 ft-lbs is the torque specification for the governor arm mounting screws.

What components have **required** clearance measurements for proper function? keyboard_arrow_down

0.020" is the specified breaker point gap for the engine ignition system.

Confirm the **specified** torque specifications for the hydrostatic transmission. keyboard_arrow_down

30 ft-lbs is the torque for high-pressure relief valve bolts on the transfer block.

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Reviews (5)

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The manual covers everything you need to know about my 400 Series tractor. The download link was in my email almost immediately. Excellent service!
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Rated 4 out of 5 stars
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Rated 4 out of 5 stars
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This service manual is a lifesaver for maintaining my Allis-Chalmers! The download was smooth and the support team responded quickly to my questions. Highly recommend!
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The troubleshooting tips are incredibly helpful. I appreciated the quick response from support when I had questions. Very professional service!