OM4207 04/10 Automatic Lubrication System - Section 42 42-9 INJECTORS (SL-1 Series “H”)) Injector Specifications Each lube injector services only one grease point. In case of pump malfunction, each injector is equipped with a covered grease fitting to allow the use of manual lubrication equipment. Injector output volume: Maximum output = . . . . . . . . 1.31 cc (0.08 in 3 ) Minimum output = . . . . . . . . 0.13 cc (0.008 in 3 ) Operating Pressure: Minimum - . . . . . . . . . . . .12 755 kPa (1850 psi) Maximum - . . . . . . . . . . . 24 133 kPa (3500 psi) Recommended - . . . . . . .17 238 kPa (2500 psi) Maximum Vent Pressure - (Recharge) . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4137 kPa (600 psi) FIGURE 42-7. TYPE SL-1 INJECTOR Injector Adjustment The injectors may be adjusted to supply from 0.13 cc to 1.31 cc (0.008 in 3 to 0.08 in 3 ) of lubricant per injection cycle. The injector piston travel distance determines the amount of lubricant supplied. Piston travel is con- trolled by an adjusting screw in the top of the injector housing. 1. Adjusting Screw 2. Locknut 3. Piston Stop Plug 4. Gasket 5. Washer 6. Viton O-Ring 7. Injector Body Assy. 8. Piston Assembly 9. Fitting Assembly 10. Plunger Spring 11. Spring Seat 12. Plunger 13. Viton Packing 14. Inlet Disc 15. Viton Packing 16. Washer 17. Gasket 18. Adapter Bolt 19. Adapter 20.
Viton Packing Turn adjusting screw (1, Figure 42-7) counterclockwise to increase injector output and clockwise to decrease injector output. When the injector is not pressurized, maximum injector delivery volume is attained by turning the adjusting screw (1) fully counterclockwise. Turn until the indicat- ing pin (8) just touches the adjusting screw. At the max- imum delivery point, about 9.7 mm (0.38 in.) of adjusting screw threads will be exposed. Decrease the delivered lubricant amount by turning the adjusting screw clockwise to limit injector piston travel. If only half the lubricant is needed, turn the adjusting screw to the point where about 4.8 mm (0.19 in.) threads are exposed.
The injector will be set at the minimum deliv- ery point with about 0.22 mm (0.009 in.) thread exposed. NOTE: Piston assembly (8) has a visible indicator pin at the top of the assembly to verify injector operation. NOTE: The information above relates only to the adjustment of injector delivery volume. The timer adjustment must also be changed if overall lubricant delivery is inadequate or excessive. Do not adjust Injector output to less than one-fourth capacity.