Setting the Braking System
KNOTT Brake
| 12 | Adjuster Bolt | | 13 | Cable Inlet | | 14 | expander | | 15 | fixed brakeshoe | | 16 | sliding brakeshoe:
consists of brakeshoe carrier and brakeshoe | 
KNOTT Overrun Coupling
KNOTT actuation equipment for twin and single axle chassis
| 1 | Brakeaway Cable | | 2 | Coupling head | | 3 | Handbrake lever | | 4 | Overrun lever | | 5 | Drawtube with bellow | | 6 | Brake rod | | 8 | Balance bar complete | | 9 | Balance bar (twin) | | 10 | Balance bar (single axle) | | 11 | Cable | Across flat dimensions of adjuster bolts [12] | Brake size | Across flats dimensions | | 160x35/200x50 | SW 17 | | 250x40 | SW 19 | | 300x60 | SW 24 | Preperation: - Jack up the trailer, release the handbrake and fully extend the drawtube [5] on the overrun coupling.
Prerequisites:- Always start by setting the service brakes.
- During set up only turn the wheel in forward motion.
- The expander on the brake must not be under tension - if necessary the brake rod [6] can be loosened. Check the actuation of the expander and the cable [11].
Installation: - Brake
- Turn the adjuster bolt [12] (located at the top of the backplate, opposite the cable inlet [13]) in a clockwise direction, until the wheel can no longer be turned or until it can only be turned with great difficulty..
- Loosen the adjuster bolt [12] by turning anti-clockwise (approx. half a turn) until wheel turns freely.
- Slight grinding noises, which do not affect the free running of the wheel are permitted. On correctly fitted brakes the actuation travel on the cable is approx. 4-6mm.
- Please follow setting instructions as described on all brakes.
- If there are any turnbuckles on the brake rod these shold not be used to adjust the brakes or braking system, nor shold the brake rod itself be used for adjustment
- Balancing of the Brakes [8]
- Adjust the length of the brake rod [6] (slight play by the overrun lever [4] is acceptable).
- actuate handbrake lever [3] and check the position of the balance bars [9+10] ==> perpendicular to the brake rod.
- if necessary correct the position of the balance bar [10] on the cables and on twin axle trailers where necessary the main balance bar [9] on the brake rod [6].
- Brake Rod [6]
- Adjust the length of brake rod [6] so that there is neither play nor bias - overrun lever [4] without play;
Readjustment: - Actuate the handbrake lever [3] serveral times and then gently pull the lever further in order to set the braking system up correctly.
- Check the position of the balance bar [9+10] - right anled position to the towing direction.
- Check the play on the brake rod [6] if necessary readjust the brake rod [6] so there is no play, but so that it is not under tension.
- Check the position of the handbrake lever [3].
- Overcentre handbrake lever - resistance should start approx. 10-15mm above overcentre.
- Ratched handbrake lever - brake effect should befin at approx. the third tooth.
- Check the free running of the wheels with the brakes off.
Final check: - Check all bolts and joints (tighten hexagonal head bolts on transmission equipment) (Cables, balance bar, turnbuckle, brake rod...)
Test run: - If necessary carry out 2-3 test brakes.
Sample brakes: - Re-check the play on the overrun lever [4] if necessary readjust the length of the brake rod [6] so that there is no play - on service brakes a max. 2/3 overrun permitted..
Readjustment of braking System - Adjusting the brakes, this means balancing general lining wear after adjusting the brakes.
- Follow procedure as described under "set up braking system", check play at the overrun lever [4] and if necessary readjust.
Einstellvorschrift 002 - 24.03.2003 (www.knott.de) |
