1. Conditions of use

The manual lubrication pump is a small lubrication pump that is operated by a manual plate to discharge lubricant. It can be directly installed on the wall plate or frame of the machine. The basic type can be directly combined with a single-line distributor to form a manual single-line centralized lubrication system; the basic type is equipped with a reversing valve and a dual-line distributor to form a manual dual-line terminal centralized lubrication system.

This pump is suitable for single-machine small equipment with low lubrication frequency (generally the oil supply interval is more than 8 hours), the length of piping D N10 does not exceed 50 meters, and the lubrication points do not exceed 40 points. It is used as a device for centralized lubrication and lubricant supply.

2. Technical parameters

The medium used is grease (NLGI 0# ~ 2#) with a cone penetration of not less than 265 (25℃, 150g) 1/10mm and lubricating oil with a viscosity greater than N68. The applicable ambient temperature is -10℃~40℃.

3. Dimensions

4. Model description

5. Working principle

The manual lubrication pump is used to manually pull the handle and drive the gear piston 2 to reciprocate through gear 1 to achieve lubrication. When the piston is at the limit position on the right end as shown in the figure, the volume of the oil chamber at the left end increases to form a vacuum, so the lubricant in the oil storage cylinder is sucked into the oil chamber at the left end of the piston from the suction port under the action of the spring and piston piece. When the piston moves to the left, the sucked lubricant is pressed into the hole I and pushes the slide valve 4 to the right end limit position, and opens the check valve 5 to discharge it from the oil outlet. At this time, the volume of the oil chamber at the right end of the piston gradually increases , the lubricant is sucked in. When the piston returns and moves to the right, the oil chamber filled with lubricant gradually becomes smaller, squeezing the lubricant into the hole II, pushing the slide valve 4 to move to the left, and opening the one-way valve 5 to discharge the oil. The pump is discharged through the port, and the bottom of the pump is equipped with a reversing valve. Pulling the reversing handle to the left and right extreme positions can realize dual-line supply.

6. Operation method

Single line type:

1. Push the indicating rod of the oil return indicator.

2. The swing handle moves forward and backward, and the pointer of the pressure gauge fluctuates, which proves that the system distributor is supplying oil.

3. All the indicating rods of the oil return indicator pop out, proving that the system distributor has completed an oil supply cycle.

4. Advance the indicating rod of the oil return indicator to prepare for the next cycle.

Double line type:

1. Turn the handle of the reversing valve to the left position, supply oil to the main line I, and unload the main line II.

2. The swing pump handle moves forward and backward, and the pressure gauge pointer fluctuates, which proves that the system distributor is supplying oil.

3. The pressure value indicated by the pressure gauge on the pump rises and remains stable, proving that the system distributor has completed one cycle of operation.

4. Operate the reversing valve handle to the right position, main line II supplies oil, and main line I unloads. Press 2 and 3 to operate and complete a cycle of system actions.

5. Change the direction of the reversing valve, relieve the pressure of pipeline II, and prepare for the next cycle.

7. Instructions for use

1. The manual lubrication pump should be installed vertically, and there should be space above and around the pump for the indicator rod to rise for grease replenishment. When it needs to be installed outdoors or in harsh environments, the pump should be placed in a protective cover.

2. Do not operate the handle when there is no lubricant in the oil storage tank.

3. To add grease into the oil storage tank, a special manual or electric fuel pump must be used to fill it from the filling port; lubricating oil is added from the top of the oil storage tank.

4. The operating pressure is not allowed to exceed the nominal pressure of the pump.

5. It is not allowed to overlap two safety insurance sheets, and it is not allowed to use other materials instead.

6. The function of the oil return indicator on the single-line pump is that the operator can know the oil supply and lubrication status of the lubrication system by observing the movement stroke of the indicator piston. When using, first calculate eachProcess lubricationAccording to the required oil supply amount of the parts, configure the distributor, and connect an additional oil outlet on the main distributor with the oil return port of the manual lubrication pump to return the lubricant to the indicator, such as the returned oil When the cumulative amount reaches 3.28ml, the piston indicator rod of the indicator is fully extended, indicating that each lubrication point has completed a cycle of oil supply as required. The oil supply should be stopped and the indicator rod of the oil return indicator should be pushed forward.