DG Flugzeugbau DG-800A, Руководство по обслуживанию, Страница: 23 / 163

Maintenance Manual DG-808C
Issued: May 2012 TN800/41 1.10
1.6.4 Hydraulic brake system (Option)
a) Brake fluid approved specification DOT 3, DOT 4, SAEJ 1703.
The brake fluid must be exchanged at least every 4 years.
Warning: brake fluid is poisonous.
b) Adjustment: see section 1.5.2c)
If adjustment does not increase the braking effect as desired, the brake
system is leaking or there is air in the brake system. Bleeding of the brake
system see section 4.4.4.
c) The brake linings must be replaced if they are worn down to a thickness of
2.5 mm (0.1 in.).
Replacement set (2 linings, 6 rivets) Tost Nr. 075860.
d) The brake disc must be replaced if it is worn down to a thickness of 4.3 mm
(0.17 in.).
1.7 Tow hooks
1.7.1 Tow release circuit
see diagram 5
1.7.2 Adjustment
There should be 5 + 2 mm (.2 in. + 0.08 in.) space between the tow release knob
and the nylon cable guide.
5

2
1.7.3 Damages
The ring muzzle of the C.G. hook should not be bent or ground down and should
move easily. If the muzzle is damaged, the tow release has to be exchanged and
repaired by the manufacturer (Tost).
1.7.4 Removing the tow hooks
The tow hooks are to be removed in upward direction (use a piece of hard wood
and a hammer). Be careful not to break loose the seat shell with the C.G. tow
hook.
1.7.5 Operating and maintenance instructions
For further information refer to the operating and maintenance instructions for
the release mechanism. (See sect. 0.4 of this maintenance manual)