IDLER GP-FRONT 2278715 - Caterpillar

Rotation is clockwise when seen from drive end.Type of pump: gear.For test use SAE 10W oil at 66°C (150°F).8J4517 Pump: Torque for bolts in body (eight) ... 44 7 N m (32 5 lb ft)3G5387 Pump: Torque for bolts in body (eight) ... 40 2 N m (30 1 lb ft)(1) Torque for nut on shaft ... 70 7 N m (50 5 lb ft)(2) O-ring seals in correct locations.(3) Drive shaft of pump (cross section).Large Section (Drive End)
Test at Full SpeedOutput 8J4517 ... 72.3 liter/min (19.1 U.S. gpm)Output 3G5387 ... 69 liter/min (18 U.S. gpm) At a pressure of ... 690 kPa (100 psi)With pump at ... 2200 rpmWith engine at ... 1980 rpmOutput 8J4517 ... 71.2 liter/min (18.8 U.S. gpm)Output 3G5387 ... 62 liter/min (16 U.S. gpm) At a pressure of ... 6900 kPa (1000 psi)With pump at ... 2200 rpmWith engine at ... 1980 rpm Test at Half SpeedOutput 8J4517 ... 35.9 liter/min (9.5 U.S. gpm)Output 3G5387 ... 34 liter/min (9 U.S. gpm) At a pressure of ... 690 kPa (100 psi)With pump at ... 1100 rpmWith engine at ... 990 rpmOutput 8J4517 ... 34.8 liter/min (9.2 U.S. gpm)Output 3G5387 ... 31 liter/min (8.2 U.S. gpm) At a pressure of ... 6900 kPa (1000 psi)With pump at ... 1100 rpmWith engine at ... 990 rpmSmall Section
Test at Full SpeedOutput 8J4517 ... 46.5 liter/min (12.3 U.S. gpm)Output 3G5387 ... 45 liter/min (12 U.S. gpm) At a pressure of ... 690 kPa (100 psi)With pump at ... 2200 rpmWith engine at ... 1980 rpmOutput 8J4517 ... 45.4 liter/min (12.0 U.S. gpm)Output 3G5387 ... 40 liter/min (11 U.S. gpm) At a pressure of ... 6900 kPa (1000 psi)With pump at ... 2200 rpmWith engine at ... 1980 rpm Test at Half SpeedOutput 8J4517 ... 23.5 liter/min (6.2 U.S. gpm)Output 3G5387 ... 22 liter/min (5.8 U.S. gpm) At a pressure of ... 690 kPa (100 psi)With pump at ... 1100 rpmWith engine at ... 990 rpmOutput 8J4517 ... 22.3 liter/min (5.9 U.S. gpm)Output 3G5387 ... 20 liter/min (5.3 U.S. gpm) At a pressure of ... 6900 kPa (1000 psi)With pump at ... 1100 rpmWith engine at ... 990 rpm