----- Forwarded Message -----
From: Laurie Hoffman <[email protected]>
To: DOG LIST <[email protected]>
Sent: Friday, 17 June 2016, 18:57
Subject: H36 Daily Inspection
Hi All,
Good to see some recent activity on the forum.
I was talking with Rob the other day about working up some additions to the
Daily Inspection list for the Dimona which incorporates the acquired knowledge
of owners and operators. He mentioned that Tom has raised the issue that the
locking pin for the main wing pins can be inadvertently pushed into the wrong
position.
Thought I'd start a list here and invite any to add to it and resend to the
forum so that over time we can compile an accumulation of valuable
considerations. These are suggestions in addition to the standard Daily
inspection requirements. A number of these have been offered by DOG members
over the years, especially Rob, Nigel, Col and Macca.
Apologies to the engineers where I have not used the correct terminology and
feel free to rectify. Some aspects may not require daily checking but warrant
occasional checking.
EngineOperate electric fuel pump prior inspecting engine for carby bowl
flooding (only after prop pull through though!)Throttle cable attachment point
through brass bush on horn of carby connecting rod. (Ensure that it is rotating
freely/lubricated when throttle is operated)Check air filters are firmly
attached to carbsCheck tightness of 6 x cowl attachment screws
PropPull prop through for testing compression and for lubrication.Check blade
pitch movement at the hub is within limitsCheck blade tip movement for and aft
is within limitscheck blade tip movement in line of rotation is within limits
Airframe* Check for rudder cable wear at 's' tube adjacent pedals* Ensure no
fore and after movement of tailplane at locking pin (as per recent AD)* Check
for cracking in shroud for canopy emergency release pins (fixed behind each
seat upper)* Check undercarriage bow integrity for hairline cracking (may just
be filler but monitor)* Check main pins safety clip. - After mounting wings and
clipping the safety pin into its spring clip on the left seatback, be sure to
peer through the right side bolt handle slot with a flashlight and ensure that
you can see the tip of the safety pin protruding through the right side bolt
housing. While the safety pin may appear to have been properly inserted when
it is at rest under its spring tab, my Dimona (s.n. 3506) disbonded the copper
carrier tube inside the keel that connects right and left main bolt housings,
and allowed the safety pin to slide UNDER the right side bolt rather than
THROUGH it. Access to this carrier tube is through the right hand side keel
plate, and will be awkward for me to repair, though it can be seen clearly with
an inspection mirror and bright light. The carrier tube is bonded at both
sides, and the bonded area is small. Please also note that the length and bend
of the safety pin affect the amount of pin protruding into the right bolt
housing. See the drawing in SB 24 to get a technical picture of what you're
looking for... http://support.diamond-air.at/h36_sb+M52087573ab0.html
Other
Laurie
