BUSHING 2416347 - Caterpillar

When filling the reservoir, caution should be used as extreme pressure can cause damage to the reservoir or serious personal injury.
021
General Maintenance* Keep area around pump clean. Clean off filing port area prior to filling reservoir. Clean area around filler after filling as lubricants will attract dirt.* Keep lubricants clean and free of dirt and debris.* When replacing grease pails be especially careful to prevent any foreign matter from entering the grease pail or contaminating the grease, as it adheres to the pump. In Case of System Malfunction (See Trouble Shooting Chart Page 8)* Use the Trouble Shooting Charts to determine where to look if problems occur.* See the sections below for replacement and repair of specific areas of the check valve, vent valve or safety unloader valve.* Each part is identified with a number keyed to the matching part on the illustrated views.* General recommendations of tools required are also specified in each step.* Pay particular attention to the Warning statements to prevent personal injury and possible damage to pump components. Outlet Check Service (See Figures 1, 2, 7 & 8, Pages 5 & 6)The pump will not build up sufficient lubricant pressure if the outlet check (47) is fouled. Foreign material may lodge beneath the Check Ball (25) or between check disc (21) and the seat of bushing assembly (22). Sealing surfaces of the seat must form a perfect seal. Clean parts or replace if pitted, worn or scored.1. Turn off and disconnect the hydraulic and electric power supply to the pump assembly.2. Standard tools required are a bench mounted vice, a set of open end wrenches ranging from 7/16" to 1-1/2", a large 24" (600 mm) adjustable wrench and a smaller 10" (254 mm) adjustable wrench.3. Remove bolts and lock washers (52 & 53).4. Loosen adapter union (48). Set vent valve assembly to the side.5. Remove entire outlet check assembly (47) by loosening adapter (46) from pump outlet.6. Remove adapter (46) from outlet check assembly (47).7. Remove outlet connector (26) from bushing (22).8. Remove ball check seat (23) from outlet connector (26).9. Inspect all check components (21, 22, 23, 25) for presence of foreign material, scoring and or other damage, which may cause internal leakage. Replace components if damage is found.10. If foreign material is present, clean components and reassemble. Be sure to always replace gaskets (20) & (24) whenever vent valve is disassembled. Reverse the above procedure to reassemble. Torque check assembly to 100 ft-lbs. (13.5 N m). Vent Valve Service (See Figures 3, 7, & 8, Pages 5 & 6)1. Turn off and disconnect the hydraulic and electrical power supply to the pump assembly.2. Standard tools required are a bench mounted vice, a set of open end wrenches ranging from 7/16" to 1-1/2", a large 24" (600 mm) adjustable wrench and a smaller 10" (254 mm) adjustable wrench.3. Remove delivery hose (17). Loosen Adapter Union (48) and Vent Hose (14).4. Remove bolts and lock washers (52 & 53). Remove vent valve.5. Hold base