PUMP GP-HYD 0R4333 - Caterpillar

Start By:a. remove main drive shaft1. Remove the plug in the bottom of the transmission and bevel gear case, and drain the power train oil. Loosen the bolts that hold the transmission suction screen cover in place and drain the oil from the transmission case. Approximately 129 liter (33.5 U.S. gal.) of oil will be drained. Install the plug and tighten the suction screen cover bolts. 2. Remove the yoke. Use forcing bolts and remove retainer (1) and the O-ring seal from the transmission and bevel gear case. 3. Remove the four bolts at the center of the cover. Remove the seventeen bolts and the cover. Remove the gasket from the cover.4. Remove the round adapter and two sleeves (2) from the control assembly.5. Remove four bolts (3) and disconnect cables (4) and (5) from the control assembly. Pull the cables out of the way. 6. Attach the FT1977 Adapter to the 5P7279 Adjustable Hook, [both are parts of tooling (A)].7. Put a piece of plywood, or similar material, in position over the rear glass of the cab for protection.8. Adjust the top hanger (dimension X) to 25.4 cm (10 in). Adjust the lower hanger as far in as possible.9. Use a hoist and attach tooling (A) to the transmission cover.10. Remove the small round cover and install tooling (B) onto the transmission cover.11. Remove four bolts (7) and twenty two bolts (6) from the transmission cover. The axle shafts will prevent the bevel gear case from moving out of the tractor case and frame. 12. The weight of the transmission planetary is 375 kg (825 lb). Put a long bar into tooling (B) and remove the transmission planetary from the tractor case and frame. The following steps are for installation of the transmission planetary.13. Install tooling (A) and (B) onto the transmission planetary. Put O-ring seal (9) in position on the transmission cover.14. Put the transmission planetary in position in the tractor case and frame. Use a long bar to counter balance the planetary as it is installed. Align the splines of transmission output shaft (8) with the transfer gears and install the planetary. Install four bolts (7) and twenty two bolts (6).15. Remove tooling (B) and install the round cover. Remove tooling (A).16. Connect cables (4) and (5) to the control assembly and install bolts (3). Install sleeves (2) and the adapter. Put the cover in position and install the bolts.17. Install retainer (1) and the yoke.18. Fill the transmission and bevel gear case with oil. See the Operation And Maintenance Guide for the proper type of oil and capacity.End By:a. install main drive shaft