Differences

This shows you the differences between two versions of the page.

--- bb:fan_jet_belts [2008/10/24 16:24] – tomgee
+++ bb:fan_jet_belts [2009/03/24 08:44] (current) – tomgee
@@ Line 1: / Line 1: @@
 ===== Fan Jet Belt =====
 Fan Jet uses a 3L270 belt.
+===== Adjusting the Large Fans belt tension =====
+The fan belt tension can be adjusted from the outside or inside the greenhouse. It's easiest to adjust from the inside since the fan blade interferes when adjusting from the outside. To adjust from the outside, the guard screen must be removed. The guard screen on house 1 and 2 is fastened with self tapping screws requiring a 3/8" socket to remove. To adjust from the inside the guard screen must be removed by flipping the four clips up which are located along the top. It may be necessary to remove the 21 foot long crossbar pipe which goes across the front of the guard and shutter assembly. Once the inside guard is removed, the shutter assembly slides upward and out on houses 1 and 2 and just out on houses 3 and 4. The shutter on houses 3 and 4 is attached with 4 turnbuckles which must be rotated 90 degrees before the shutter can be removed. I have been successful at removing the shutter from the inside without removing the above mentioned crossbar but clearances are tight and the job is even harder if there are plants on the table in front of the fan shutter.
 ===== Tightening the Large Fan belts =====
@@ Line 20: / Line 24: @@
   - Tighten the four motor mounting feet nuts with a 1/2 inch open end wrench
   - Re-assemble the shutter and guard assembly.
+===== Fan Belt Sizes =====
+This is a compendium derived from the google maintenance blog.
+  * March 2007, House 2, 4L540
+  * April 2007, House 3 MBL Corp 4L550
+  * July 2007 House 3, 4L550