Hydraulic power assembly having a removable top

A hydraulic power assembly for delivering hydraulic fluid to a plurality of hydraulic device, said hydraulic power assembly comprising;

• a tank (12) having a bottom (22) and a peripheral side wall (13) extending upwardly from said bottom (22) to a top opening (24) for defining a chamber (25) for containing fluid,
• a liner (74) comprising foam covering the interior of said chamber (25),
• a removable top (26) disposed over said top opening (24) to close said chamber (25),
• fasteners (28) interconnecting said removable top (26) and said side wall(13),
• a motor (30) disposed on said removable top (26) outside said chamber (25),
• a first pump (32) depending from said removable top (26) and into said chamber (25) and including a first inlet (34) and a first outlet (35),
• a second pump (46) depending from said first pump (32) and including an second inlet (48) and an second outlet (50),
• a drive (60) interconnecting said motor (30) and said first (32) and second (46) pumps in series and in sealing engagement with said removable top (26),
• a fluid distribution manifold (38) disposed on said removable top (26) out side said chamber (25) and including a plurality of valves (40) for distributing fluid to devices and a return port (44) for receiving return fluid from the devices,
• fluid lines (36) interconnecting said outlets of said pumps and said manifold (38) for conveying fluid from said outlets to said manifold (38),
• a return line (62) for returning the return fluid from said manifold (38) to said chamber (25),
• a first leakage line (52) in fluid communication with said first pump (32) for receiving leakage between said first inlet (34) and said first outlet (35) of said first pump (32), said first leakage line (52) extending through said removable top (26) to a first pump leakage port (56) and back through said removable top (26) for drainage into said chamber (25),
• a second leakage line (54) in fluid communication with said second pump (46) for receiving leakage between said second inlet (48) and said second outlet (50) of said second pump (46), said second leakage line (54) extending through said removable top (26) to a second pump leakage port (58) and back through said removable top (26) for drainage into said chamber (25),
• a heat exchanger (78) in fluid communication with said first leakage line (52) and said second leakage line (54) for cooling the fluid, and
• lift devices (64) on said removable top (26) for lifting said removable top (26) along with said motor (30), said pump, said manifold (38) and said drive (60) from said side wall (13).