More Top Tips for those who are not hugely experienced:
- Flexibles.
Only carry 2 types:
1/4 male angled to 1/4 female straight
1/4 male angled to 3/8 female straight
I use Green bio ones for 3/8 and black long life for 1/4, just colour codes them in the van.
And a box of adapters, inserts, Heldite, isolators, 1/4 to 10mm, 3/8 to 10mm etc.
First remove old flex from oil pipe, place end into small tub.
Put new flex onto oil pipe.
Detach old flex from pump along with union if present (17mm and or 15mm spanner usually), once cracked, will drain into tub.
Open isolator and bleed new flex into tub (if no isolator, install one).
Install new angle end into pump in same orientation as last one came out (usually).
Old braided 3/8 hoses are often 19mm spanner with 17mm adaptor, new ones are bigger.
I also keep in my 'oil line sorting tray box thing' a compartment of all the odds and sods I take off old pipes, weird and wonderful conex threaded 1/2" to 3/8 female elbow iron (OK I made that one up..).
I always show the old hose to custard or leave in boiler until the next year.