RDG603A20 - Issue 10
Page 25 of 100
hoses cannot be sourced locally. The part numbers used by A.S.A.P. Supplies LTD are
shown in the following table.
A.S.A.P Supplies Part Number
Size of Hose (mm)
206428
28mm
206435
35mm
A.S.A.P. Supplies LTD can be contacted by:
Telephone
+44 1502 716993
Internet
www.asap-supplies.com
Please be aware that other suppliers are available.
6. Pressurised Water Header Tank
WARNING:
SCALD HAZARD!
NEVER REMOVE THE HEADER TANK CAP IF THE ENGINE IS
HOT. STEAM AND HOT COOLANT MAY SPURT OUT AND CAUSE INJURY. TIGHTEN
THE HEADER TANK CAP SECURELY AFTER BEING REMOVED. STEAM CAN
SPURT OUT DURING ENGINE OPERATION IF THE CAP IS LOOSE.
The pressurised header tank should be mounted higher than the level of the engine,
no less than 300mm, and no more than 1m from the engine, to prevent cooling system
air locks.
Shire 50: A single hose connects the tank to the vertical hosetail fitted into the port
side of the twin thermostat housing.
Shire 38, 40 and 45: Two hoses are used on these engines. One is fitted between the
smaller internal diameter (3mm) outlet (on the left hand side of the tank) and the
connection on the port side of the top of the thermostat housing (on 45 the side of the
twin thermostat housing). The second hose is connected between the larger internal
diameter outlet on the right hand side of the tank and the ½“ hosetail connection on
the engine pipe facing forwards and upwards at 45°. The hoses
MUST
be connected
correctly
The connections for the Header Tank are shown on (
Figure 15
)
A constant rise on pipework is required to prevent air locks
