Detroit Diesel 4000 Series, Service Manual, Page: 1806 / 2706

SERIES 4000 12/16V SERVICE MANUAL
1. Using special tool #2 (3), press the front retainer seal assembly (1) onto the fan mounting
hub (2). See Figure 1089.
NOTE:
The inner race of the retainer should recess 0.040 in. (1.016 mm) below the shoulder.
1. Retainer Seal Assembly 3. Special Tool #2
2. Fan Mounting Hub
Figure 1089 Installation of Front Retainer Seal Assembly
2. Coat the inside diameter of the front wear sleeve (2) and the wear sleeve diameter of the
shaft with Loctite 242 (or equivalent). Press the front wear sleeve onto the shaft, flush
with the shoulder using special tool #2. See Figure 1090.
NOTE:
The front wear sleeve (2) is not interchangeable with the rear wear sleeve.
NOTE:
Early fan mounting hubs were manufactured with a small lube hole under the wear
sleeve. The new wear sleeve will cover the hole. The hole is no longer required.
All information subject to change without notice.
C -1660
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