Construction Machinery: Attached Equipment Komatsu

Model	Type of pump	Overflow valve pressure	Lifting time	Unloading time	Lowering time
WA250PT-5	Double-acting piston type	20600 kPa - 3000 lb / sq. inch	6.3 sec	1.7 sec	3.3 sec
WA200PT-5	gear type pump	19900 kPa - 2900 lb / sq. inch	5.9 sec	2 sec	3.6 sec