Mechanical And Functional Testing Of The F1A4; Mechanical Testing - Minelab F1A4 Service Manual

2.

MECHANICAL AND FUNCTIONAL TESTING OF THE F1A4

This section details mechanical and functional testing of the F1A4. Section
2.1 lists all mechanical testing and directs the user to applicable Level 1 repair
procedures if any defects are found. Section 2.2 lists functional testing of the F1A4
and will refer the user to the applicable fault finding procedure if a fault is found. A
defective component is confirmed using the substitution method, so a complete and
fully serviceable F1A4 should be on hand. After any repair to the F1A4, Section 2.2
Functional Testing, must be completed in full to ensure the F1A4 is returned for
operational use.
2.1

MECHANICAL TESTING

To conduct mechanical testing, unpack and fully assemble the F1A4 (As
described in the F1A4 Operations Manual). Ensure the armrest is fitted, control box
is mounted on the shaft and good batteries are used. During assembly:
1. Check that the coil yoke nut and bolt are firmly tightened and that the friction
washers are present and in good condition. The coil should be held firmly in
position (but moveable) on the yoke. If coil is loose on the yoke check the
nut, bolt and friction washers and replace as required.
2. Check that the skid plate is firmly attached, is not worn through or cracked.
Replace if required.
3. Check that the upper shaft slides smoothly over the lower shaft and when the
camlock is closed the upper shaft stays in position on the lower shaft. If
necessary, replace the camlock (Section 3.1).
4. Inspect the Armrest for cracks and other damage. Inspect the armstrap.
Check that the armrest slides fully into the upper shaft and is held firmly when
the upper camlock is closed. If necessary, replace the camlock (Section
3.1).
5. Check that the control box is firmly attached when the lock pin is fully rotated
to the stop. If necessary replace the handle (Section 3.2).
6. Inspect the handstrap and hand grip for wear, and replace if necessary
(Section 3.3).
F1A4 Field Service Manual – Level 1 Maintenance
Page 7