New Holland CX720 Repair Manual page 1706

Crankshaft Front seal - Install (B.10.A.43.01 - F.10.A.15)
CX720, CX740, CX760, CX780, CX820, CX840
IMPORTANT: DO NOT apply any lubricant to the seal, shield or wear sleeve during or after installation.
1. Clean all parts and install the O-ring (1).
2. Carefully remove shield from the replacement seal.
NOTE: It is important that shield is removed as this will
affect the correct positioning of the seal in the engine front
cover during the installation process.
3. Seal (1) separated from shield (2).
POWER PRODUCTION - ENGINE
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