## Draining the oil ![[IMG_3133.png|grid]]![[IMG_3136.png|grid]]![[IMG_3138.png|grid]] ## Changing shaft seal ### Removing the old shaft seal >[!Warning] > Evaluate the pinch hazard posted by the gear wheels before starting this Remove the nut ![[IMG_3143.png|med]] Use a wrench to loosen in + a well positioned allen key (6mm) to hold it in place. Once the nut is loosened you can remove it by hand. Get the wheel off the shaft (a [[shaft puller]]) would be useful for this Method: carefully wedging a screwdriver between the shaft and the wheel ![[IMG_3188.png|grid]]![[IMG_3189.png|grid]]![[IMG_3190.png|grid]] Use the [[Circlip pliers]] to remove the circlip ![[IMG_3154.png|grid]]![[IMG_3155.png|grid]] Pullllll the shaft seal out (do NOT scratch the metal) ![[IMG_3161.png|grid]]![[IMG_3163.png|grid]] Clean out inside the shaft (NO degreaser here, it's corrosive) ![[IMG_3166.png|med]] ### Inserting new shaft seal Recommend shaft seal: ==TC 19x40x10 or HTC 19x40x10== Replacement shaft seal used:![[Screen Shot 2023-01-10 at 4.46.50 PM.jpg|grid]] ![[IMG_3167.png|grid]]![[Screen Shot 2023-01-10 at 3.22.33 PM.jpg|grid]] Insert with the flat side pointing in and the indented side pointing out. Slide it down the seal, applying even pressure around the shaft ![[IMG_3174.png|grid]] Replace the circlip ![[FBFE1F1A-914D-4C23-A55C-A1C7381D4981.jpg|grid]]![[IMG_3195.png|grid]] Replace the wheel ![[IMG_3179.png|med]] Using the allen key + wrench trick to tighten the wheel back on: ![[IMG_3182.png|grid]]![[IMG_3186.png|grid]] ## Replacing the oil Grab the inlet tube and unscrew it - DON'T grab it by the threads ![[IMG_3199.png|grid]] Pour the oil in with a funnel Use a tube/stick/wire/rod shaped object to decant the oil for easier pouring ![[IMG_3202.png|grid]] ## Setting belt tension Replacement belt used: ![[Screen Shot 2023-01-10 at 4.46.34 PM.jpg|med]] The nuts on the threaded rod set the distance between the pump and the plate below, and the greater that distance, the tighter the belt will be ![[IMG_3210.png|grid]]![[IMG_3205.png|grid]]