DAF STARTER Truck Starter 0001372008 0001372007 0001371010 0001371015

Pre-Installation Preparation

1. Safety Protection and Vehicle SecuringPark the DAF truck on level ground, engage the parking brake, and place wheel chocks to prevent rolling. Wear protective gloves and goggles. Prepare tools including socket wrenches, torque wrenches, screwdrivers, rust remover, conductive paste, a jack, and supports. Disconnect the negative battery cable—due to the 24V high-voltage circuit, wait 5 minutes to discharge residual electricity and avoid short circuits during operation.
2. Accessory Compatibility VerificationConfirm the new 24V starter motor is compatible with the specific DAF model. Verify critical parameters such as starter power, number of gear teeth, and mounting ear spacing to ensure alignment with the flywheel ring gear and mounting bracket, preventing meshing abnormalities or installation misalignment.

Removing the Old Starter Motor

1. First, mark the connection positions of the thick power cable and thin control wire on the old starter (photographic documentation is recommended to avoid wiring confusion during new starter installation).

2. Use a socket wrench to disconnect the electrical connections of the old starter: remove the thin control wire terminal first, then the thick power cable nut.

3. DAF starters are typically secured by 2–3 bolts at the engine-transmission junction. If bolts are rusted, spray with rust remover and allow it to penetrate. Loosen and remove the mounting bolts, then gently wiggle and remove the old starter while noting its installation angle and wire routing.

Installing the New Starter Motor

1. Clean oil, rust, and debris from the mounting area to ensure proper fitment and prevent gear jamming. Inspect the mounting bracket for cracks—replace damaged brackets immediately to avoid vibration-induced failures during operation.

2. Stably lift the new starter motor, precisely align it with the mounting bracket holes, and lower it into place slowly. Avoid collisions with the gear end and terminal posts.

3. Install compatible bolts and tighten them gradually in a symmetrical pattern. The recommended torque is 35–45N·m—this prevents bracket deformation from over-tightening and vibration-induced loosening from under-tightening.

Electrical Wiring Connection

1. Power Cable ConnectionPrioritize connecting the thick power cable to the main terminal post and secure it with a nut at a torque of approximately 10–12N·m. Apply a small amount of conductive paste to reduce oxidation, ensuring stable high-current transmission for the 24V circuit and meeting startup power demands.
2. Control Wire ConnectionConnect the thin control wire to the starter’s solenoid switch terminal. For some DAF models, the control wire is equipped with a dedicated clip—ensure the clip is firmly fastened after connection to prevent wire loosening or abrasion due to vehicle vibration during operation.

Commissioning and Final Inspection

1. Reconnect the negative battery cable. Recheck all bolt tightness and wiring connections to ensure no looseness, tangling, or compression.

2. Start the engine and observe the new starter’s operation: it should run without abnormal noise, mesh smoothly with the flywheel ring gear, and start the engine quickly and reliably.

3. If issues such as weak startup or no response occur, immediately disconnect the power and troubleshoot:

• First, verify wiring matches the marked positions from the old starter.

• Inspect gear meshing; if the flywheel ring gear is worn, repair or replace it simultaneously to avoid premature damage to the new starter gear.

4. Finally, clean debris from the installation area and spray rust inhibitor on exposed terminal posts to adapt to the vehicle’s harsh operating conditions.

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I. Safe Operation

1. Strict Electrical Circuit SafetyKeep the ignition switch off and remove the key throughout the disassembly/installation process. After disconnecting the negative battery cable, wait 5 minutes to discharge residual electricity to avoid short circuits in the 24V high-voltage circuit. Never allow tools to contact both wiring terminals and metal parts of the vehicle body simultaneously during operation, as this may generate electric sparks and pose safety hazards.
2. Prevent Mechanical DamageWhen lifting the starter motor, grip the main housing firmly and avoid the gear end and terminal posts to prevent the component from slipping and damaging the engine block or causing personal injury. Under no circumstances strike the starter housing, gears, or solenoid switch with hard objects such as steel hammers—DAF starters contain precision internal components that are prone to gear deformation or switch failure upon impact. If component alignment is difficult, only use a rubber mallet to gently tap the mounting bracket for adjustment.
3. Standardized Tool UsageUse tools with insulated handles, such as socket wrenches and torque wrenches, to avoid electric leakage or scratches to terminal posts. For rusted bolts, spray with rust remover and allow it to penetrate; never apply excessive force when tightening or loosening, as this may cause bolts to break and remain in the mounting holes, increasing repair complexity.

II. Installation Precision

1. Thorough Pretreatment of Mounting AreaWhen cleaning oil, rust, and debris from the mounting area, ensure no impurities fall into the flywheel housing—this could cause jamming between the starter gear and flywheel ring gear. Inspect the mounting bracket; if cracks, deformation, or other defects are found, replace it with an original equipment (OE) part immediately. Welding repairs are strictly prohibited, as vibration during vehicle operation may cause the bracket to fracture.
2. Compliant Bolt TighteningWhen securing the starter motor, install bolts using a gradual, symmetrical tightening method. Torque must be strictly controlled between 35–45N·m: insufficient torque may cause the starter to loosen due to vehicle vibration, while excessive torque can deform the mounting bracket and affect gear meshing precision. For nuts securing wiring terminals, maintain a tightening torque of 10–12N·m to avoid terminal damage from over-tightening.
3. Precise Alignment to Avoid CollisionsWhen installing the new starter, align it precisely with the mounting holes and lower it slowly to prevent hard contact between the gear end and flywheel ring gear, which would cause tooth wear and impair future startup smoothness. Ensure wire routing matches the original vehicle layout to avoid wire compression by components.

References：

Referring to Universal Installation Guidelines for Commercial Vehicle Starters

Supplementing Model-Specific Features for DAF Adaptation

Integrating Adaptive Adjustments for Complex Operating Conditions of Agricultural and Commercial Vehicles