Section 7. Component Procedures
Model 6210 Maintenance Manual
Reservoir
Hydraulic Components
Reservoir Draining and cleaning the hydraulic reservoir is important to control the accumulation of condensation and contamination that could damage the hydraulic system. Condensation is caused by the repeated heating and cooling of hydraulic fluid during normal operation. Contaminants include dirt, rust, scaling, and products of fluid deterioration. Figure 7-81.
Hydraulic Reservoir Installation
Item
Description
1
Pump / Motor Assembly
2
Clamp
3
Reservoir
4
Plug
Reservoir Removal 1. Remove the hydraulic unit from the truck. 2. Remove the hose clamp securing the hydraulic reservoir to the adapter housing. 3. Tap the reservoir lightly to loosen. Wiggle the reservoir sideways while pulling up on the pump and motor at the same time to remove.
1
4. Remove the reservoir and correctly dispose of the old hydraulic fluid. 5. After the fluid has drained, flush the inside of the reservoir with a suitable cleaning solution. 6. Dry the inside of the reservoir with clean, dry compressed air.
Reservoir Inspection 1. Inspect the reservoir O-Ring and the inside leading edge for damage. Replace if necessary. 2
Reservoir Installation 1. Lubricate the O-Ring with hydraulic fluid. Install the O-Ring.
4
3
2. Carefully install the reservoir on the adapter housing (Item 14, Figure 7-80 on page 7-72) and attach with the hose clamp. Torque the clamp to 45 to 55 in. lb. (5.1 to 6.2 Nm). 3. Install the hydraulic unit on the truck. Apply thread-locking compound to the hydraulic unit mounting screws. Torque mounting screws to 20.5 to 23.9 ft. lb. (27.8 to 32.5 Nm). 4. Fill the reservoir. See Figure 7-82. 5. Install the fill plug. Tighten until the base of the square top is flush with the top of the port.
7-74
Publication: 1146947, Revised: 12 Jan 2017
