Page
37
of
64
4.6.3 Dismantling the Speed Control
Referring to DIAG 10:
Remove the Exhaust Plug
(D5)
.
With a special Speed Control Tool (Part No. 4551) screw out the Retaining Screw
(D4).
Unscrew the Needle
(D1)
from the Needle Seating
(D3).
Drive out the Needle Seating if necessary. This should only be removed if damage is
known to have occurred.
4.6.4 Re-Assembling the Speed Control
Still Referring to DIAG 10:
Lightly lubricate the Needle Seating
(D3)
and slide into the body aperture. Drive it in gently
up to the shoulder, using a flat block of wood to avoid damaging the outer face and
internal thread.
Fit the
‘O’ Ring
(D2)
to the Needle
(D1)
. Apply a film of grease to the needle, then screw it
into the sleeve.
Thread the Retaining Screw
(D4)
into the sleeve outlet and lightly secure it to the Needle
using the special tool. Drive the Exhaust Plug
(D5)
into the sleeve outlet.
DIAG 10.
WHEN & WHY?
The Speed Control should only be dismantled when it is absolutely necessary. For example:
Damage is known to have occurred.
D4
D1
D3
D2
D5
Summary of Contents for MK 73
Page 1: ...Page 1 of 64 ssue 21 11 11 ...
Page 43: ...Page 43 of 64 SECTION 5 FAULT FINDING 5 1 Troubleshooting 5 1 2 Flowmeter Troubleshooting ...
Page 58: ...Page 58 of 64 SECTION 8 INFORMATION TABLES 8 1 Flowmeter Settings 8 2 Nozzle Selection Chart ...
Page 61: ...Page 61 of 64 Notes ...
Page 62: ...Page 62 of 64 ...
Page 63: ...Page 63 of 64 ...