NPK M20C, Instruction Manual, Page: 107 / 152

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107
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SWIVEL MANIFOLD MAINTENANCE
REPLACEMENT OF THE SEALS IN THE SWIVEL
STEP 2 (Fig. 6)
Remove the snap ring (AJ) and washer (U) from the top of the swivel assembly. Pull
the “Spindle Case” off of the “Spindle” (the cylinder hoses can be used for this) .
Fig. 6
STEP 3 (Fig. 7)
Inspection:
Visually inspect the sealing surfaces (120) of the “Spindle” (CA) for damage, which
may hamper the ability of the o-rings to seal. Polishing the surface may clean up light
scratching. Heavy scratching or galling may indicate rotator bearing play.
Fig. 7