MAINTENANCE AND SERVICING
Figure 4.25: Newer DWA Drive Block and Lift Block (MD #139974) Schematic
A - To Header Lift Block
1
B-DWALiftBlock
C-DWALiftCylinder
D - DWA Draper Motor
E-DWADr
ive Block
F - To Manifold Cooler Bypass
G-TankLine
2 3
Hydraulic schematic with newer DWA drive block with 2900 psi relief valve and new DWA lift block (MD #139974)
with two double check valves.
1. The au xiliary block (MD #139974) is bolted directly to the ma in lift b lock, depen ding on windrower options. Po rts
T and P are direct links.
2. M150/M200 to port T on knife drive block.
3. M155/ M155
E4/M205 direct to re servoir.
214049 78 Revision A
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