What is the correct installation method for the breather cap of WP0155-60-B worm gear reducer?

The core installation principle of the ventilation cap of WP0155-60-B worm gear reducer is to install it at the highest position of the box, ensure that the ventilation hole is unobstructed, moderately tighten the seal, and remove the protective plug. The following are detailed steps and specifications:

1、 Preparation before installation
Confirm specification matching: Check that the thread specification of the ventilation cap (such as M16 × 1.5, etc.) is consistent with the reserved installation hole on the top of the reducer to avoid seal failure caused by specification mismatch.

Dismantle protective components: completely remove the red/black plastic plug, sealing film, or transport protective cover on the top of the ventilation cap, ensuring that the internal ventilation channel is unobstructed.

Clean installation surface: Use a clean cloth to wipe the threads and end faces of the gearbox installation holes, remove oil stains, iron filings, dust, and prevent impurities from entering the box.

Check the sealing components: If the ventilation cap comes with an O-ring or sealing gasket, confirm that there is no damage or deformation, and replace it if necessary.

2、 Installation steps (standard process)
Dismantle the original plug: First, completely unscrew the transport oil plug/stopper on the top of the reducer.

Positioning installation: Align the ventilation cap with the highest installation hole on the top of the box (WP series usually covers the center or upper side of the box), ensuring that the ventilation port faces upwards or diagonally upwards after installation to avoid direct oil injection.

Tighten and fix: manually tighten clockwise, with a slight increase of 1/4 turn after tightening by hand. It is strictly prohibited to overtighten with a wrench to prevent thread slippage or box cracking.

Final inspection: Confirm that the ventilation cap is stable, the seal is in place, and the ventilation hole is completely open and unobstructed.

3、 Key points for installing different types of ventilation caps
Plastic/standard ventilation cap: Simply screw in, tighten and remove the top plug.

Metal/Vent Cap with Exhaust Holes: Tighten moderately to ensure that the side/top exhaust holes are not blocked by threads, ensuring gas circulation.

Bend/Extended Breather Cap: First screw in the main body, then tighten the fixing nut; Finally, loosen the top dust cover to ensure smooth exhaust.

4、 Key precautions
The position must be the highest: it must be installed at the highest position of the box to ensure smooth discharge of hot air and avoid negative pressure oil suction and positive pressure oil leakage.

Strictly prohibit blockage: The ventilation hole must be kept unobstructed. If it is blocked during operation, it will cause an increase in internal pressure, damage the oil seal, and cause oil leakage.

Oil and dust prevention: The installation position should avoid the gear oil slinging area; For dusty environments, a filter net air cap can be used, or the ventilation port can be adjusted downwards/diagonally downwards.

Regular maintenance: Check and clean the ventilation cap every 3-6 months, use compressed air to blow away oil and dust, and ensure normal respiratory function.