Final answer.
Taken directly from the Boeing FCOM
Very clearly, Hydraulic and Fuel pumps remain ON during transit stops.
Centre tank pumps will remain ON if fuel is present.
737 Flight Crew Operations Manual
Normal Procedures -
Amplified Procedures
Copyright © The Boeing Company. See title page for details.
1 Jun 2007
Transit Shutdown Procedure - Pilot Flying
After the airplane has come to a complete stop, perform the following
actions:
Parking brake ............................................................ ................... Set
Parking brake warning light – Illuminated
Electrical ............................................................ ..................... On___
Verify APU powering busses. If APU is not to be used, connect
external power.
Start levers...................................................... ........................CUTOFF
If possible, operate the engines at idle for three minutes prior to
shutdown to thermally stabilize the engine hot sections. Operating
times at or near idle, such as taxiing before shutdown, are applicable
to this three–minute period. If operational requirements dictate, the
engines may be shut down with a one–minute cooling period.
FASTEN BELTS switch ............................................................ ....... OFF
PA (captain) ..................................... “DISARM SLIDES AND OPEN DOORS”
ANTI COLLISION light switch .......................................................... OFF
At 20% N2 place the ANTI-COLLISION light switch OFF.
WING and ENGINE ANTI–ICE switches .............................................. OFF
Air conditioning PACK switches...............................................As required
APU fuel flow is reduced with both pack switches off.
ISOLATION VALVE switch – OPEN
APU BLEED air switch...................................................... ............... OFF
Exterior lights ............................................................ .........As required
Cockpit door........................................................ .....................Unlock
The PF calls “TRANSIT SHUTDOWN CHECKLIST.”