BOLT-HIGH TEMPERATURE 8C8818 - Caterpillar

2. Remove bolts and flanges (2) from inlet tube (3). Tube (3) will also have to be loosened at the strap underneath the winch drum. Remove two bolts from the strap to loosen the tube.3. Remove bolts and flanges (5). Loosen hose clamps, then remove outlet tube (6) from hose.4. Remove bolts (1) from pump bracket then remove winch pump (4). Remove O-ring seal from the pump.Install Winch Pump
1. Install a new O-ring seal (2) on the pump.2. Put the winch pump (1) in position on the adapter housing and install the two bolts that hold it.3. Install outlet tube in hose. Install the bolts and flanges that hold it to the pump, then tighten hose clamps.4. Install the bolts and flanges that hold inlet tube to pump. Install the two bolts that were removed from tube strap underneath the winch drum.Disassemble Winch Pump
start by:a) remove winch pump This pump is disassembled and assembled so it can be cleaned and inspected and to make a replacement of seals only. Check the seals for damage. If the seals are damaged, make replacements. 1. Remove eight bolts (1) and washers. If necessary, remove rough or sharp edges from the splines of the shaft and put clean oil on splines to give protection to the seal lips. 2. Remove flange (2) from the pump body, then remove two seals (3) from the flange. 3. Remove O-ring seal (4) from the flange. 4. Remove isolation plate (5), retainer ring (8), O-ring seal (7) and back-up ring (6). 5. Lift the drive gear and remove top pressure plate (9). 6. Remove drive gear (10) and idler gear (11). Remove rough edges from the pump cavity before the next step. 7. Remove bottom pressure plate (12). Put thumb of each hand in gear shaft holes of pressure plate and lift out. Do not put force on the plate.8. If this procedure is not appropriate, turn pump body over with the gear bore down and push face against wooden blocks to remove pressure plate. 9. Remove isolation plate (14), retainer ring (16), O-ring seal (15) and back-up ring (13). See DIAGNOSING TYRONE GEAR PUMP FAILURES, Form No. FEG45137 for inspection of the pump parts.Assemble Winch Pump
1. Wash all of the metal parts of the pump with a non-flammable solvent. Put clean hydraulic oil on all the parts. 2. Put pump body (1) in position with the inlet side to the left. Look at the isolation plates, one has rounded edges. Install this isolation plate (2) to the left of the shaft bores and with the rounded edges down. Install back-up ring (3), O-ring seal (4) and retainer ring (5).3. Make sure parts are in place. Install pressure plate (6) with the bronze side up and with the chamfer edge opposite the isolation plate. Do not put force on the plate. 4. Install drive gear (7) and idler gear (8). The longer journal on the idler gear must be up. 5. Install pressure plate (9) with