OM4006.2 10/98 Maintenance - Section 4 Automatic Lube System Page 4-13 LINCOLN AUTOMATIC LUBRICATION SYSTEM The Lincoln Automatic Lubrication System is a pressur- ized lubricant delivery system which delivers a control- led amount of pressurized lubricant to designated lube points. The system is controlled by an electric timer which signals solenoid valves to cause operation of a hydraulically operated grease pump. For the 530M, these components (valves, pump, and reservoir/cannister) are mounted on the right deck structure to the right of the hydraulic cabinet just above the right front suspension.
System Components The system is comprised of these basic elements plus the necessary hoses and lube lines: 1. Hydraulically Powered Reciprocating Cylinder and Pump (1 & 5, Figure 4-5). Pump Specifications: 16:1 Pressure Ratio. NOTE: The theoretical ratio of the pump is 16:1. Depending on application and variable internal friction, the operational ratio is approximately 10:1 . Hydraulic Supply Pressure (Input): 300-3000 p.s.i. (2.1 - 20.1 MPa) Input Flow (when pumping): 1.0 g.p.m. (3.8 l/min.) Maximum Hydraulic Temperature: 210°F (98.8°C) MAXIMUM Output Pressure: Not to Exceed 3500 p.s.i. (24.1 MPa) WARNING:
Exceeding this value will damage components and/or cause components to rupture, resulting in possible serious injury to any nearby personnel . 1. Pump Cylinder 8. Solenoid Valve, SV2 2. Cyl. Pressure Gauge 9. Solenoid Valve, SV1 3. Valve Body Assy. 10. Press. Reducing Valve 4. Orifice Assembly 11. Vent Valve Assy. 5. Pump Assembly 12. Grease Return Line 6. Cannister/Reservoir 13. Grease Supply Line 7. Pump Cycle Timer 14. Fill Vent Port 15. Fill Supply Port FIGURE 4-5. TYPICAL AUTO LUBE SYSTEM Output Flow: 11 cu. in./min. (180 cc/min.) Operating Ambient Temperature: -40°F to + 135°F (-40°C to + 57.7°C) Seals: Buna-N Filtration Required: 10 Micron (Hydraulic Supply) 24VDC power source. b.
Pressure Reducing Valve: The Pressure Reducing Valve (10) lowers hy- draulic fluid pressure to the operating range of the hydraulic pump cylinder. It is factory set at its maximum pressure of 300 p.s.i. (2069 kPa), but may be adjusted lower. c. The Cylinder Pressure Gauge (2): indicates hydraulic fluid pressure going to the hydraulic pump cylinder after passing through the pres- sure reducing valve. d. Orifice Fitting Assembly (4): meters hydraulic pressure from the pressure reducing valve to the top of the vent valve assembly (this permits even operation of the vent valve, without shock). This fitting is assembled to the side of the Valve Body (3) and connected with a high pressure 1/4 in.
hose to the top of the Vent Valve Assembly (11). 2. Combination Valve Body (3, Figure 4-5) includes: a. 24VDC Solenoid Valves (SV1 & SV2) are used to control the hydraulically operated pump. Solenoid Valve SVI (9) controls the supply of hydraulic fluid to the pressure reducing valve and to the vent valve. Solenoid Valve SV2 (8) directs the hydraulic fluid to the hydraulic cylinder which operates the grease pump.