623F Wheel Tractor-Scraper Hydraulic System Caterpillar

Illustration 1	g00445303

(1) 146-3501 Spring

Length under test force ... 42.0 mm (1.65 inch)

Test force ... 44.8 ± 2.9 N (10.07 ± .65 lb)

Free length after test ... 69.8 mm (2.75 inch)

Outside diameter ... 21.8 mm (.86 inch)

(2) 150-8320 Spring (outer)

Length under test force ... 17.6 mm (.69 inch)

Test force ... 304.9 ± 44.5 N (68.54 ± 10.00 lb)

Free length after test ... 19.2 mm (.76 inch)

Outside diameter ... 14.6 mm (.57 inch)

(3) 6E-3855 Spring (inner)

Length under test force ... 13.6 mm (.54 inch)

Test force ... 91.7 ± 13.4 N (20.62 ± 3.01 lb)

Free length after test ... 17.1 mm (.67 inch)

Outside diameter ... 8.6 mm (.34 inch)

(4) 5I-4297 Spring

Length under test force ... 11.0 mm (.43 inch)

Test force ... 29.6 ± 3.7 N (6.66 ± .82 lb)

Free length after test ... 13.0 mm (.51 inch)

Outside diameter ... 6.0 mm (.24 inch)

(5) Setscrew

Pressure setting ... 36200 kPa (5250 psi)

One rotation of the setscrew changes the pressure. ... 27600 kPa (4000 psi)