Service Manual

Hydraulic
System
Reelmaster 5500-D Hydraulic System (Rev. C)Page 4 - 53
Disassembly
1. Remove external components as described in the
following sections:
Shaft Seal Replacement
Trunnion Seal Replacement
Check/High Pressure Relief Valve Replacement
Charge Pressure Relief Valve Replacement
Heat Exchanger By-Pass Valve Replacement
Filter By-Pass Valve Replacement
In-Line Filter Check Valve Replacement
Charge Pump Replacement
2. Remove six (6) screws securing the center section
to the housing. Note position of longer and shorter
screws. The cylinder block springs will cause the center
section to separate from the housing (Fig. 39).
IMPORTANT: The pump and motor cylinder blocks
may stick to the valve plates and center section. Be
careful to prevent damage to the sealing surfaces.
3. Remove center section from housing (Fig. 40).
4. Remove gasket and two (2) alignment pins from
housing.
IMPORTANT: Be careful not to damage valve plate
and center section surfaces.
5. Carefully remove valve plates from center section. It
may be necessary to pry valve plates off with a small
screwdriver (Fig. 41).
6. Remove valve plate pins from the center section
(Fig. 42).
Figure 39
Figure 40
Figure 41
Figure 42