MAINTENANCE PLATFORM ADJUSTABLE, AIRCRAFT
(TYPE B-4A) PART NO. 54J6345 NSN 1730-00-294-8883
HYDRAULIC SYSTEM-PUMP ASSEMBLY
Hand Hydraulic Pump Assembly -- Exploded View.
INSPECTION OF INSTALLED ITEMS
Inspect all seals, gaskets and packings for evidence of swelling, tearing and pitting. Replace any parts found
Inspect valve spindle (Figure 1, Item 12), pump plunger and cylinder assembly (Figure 1, Item 5) for nicks,
pitting and scoring of surfaces. Replace any parts found defective.
Inspect check ball seats for pitting and roughness. Resurface these seats if required per REPAIR OR