1 00:00:09,416 --> 00:00:10,083 Right. 2 00:00:10,083 --> 00:00:13,541 This is a short follow up video to the previous one on the service of rear brakes 3 00:00:13,958 --> 00:00:17,291 and on this one, we're just going to do the final bit, which adjusting the handbrake. 4 00:00:18,166 --> 00:00:21,041 Regarding the MOT, the handbrake itself 5 00:00:21,500 --> 00:00:24,250 must kind of operate and have a locking 6 00:00:25,291 --> 00:00:26,625 mechanism. 7 00:00:26,625 --> 00:00:28,750 Generally, it's a ratchet fitted at the bottom. 8 00:00:28,750 --> 00:00:34,083 So to test it, we lift it up, apply it and then we just tap it with one hand if it drops back to the floor. 9 00:00:34,333 --> 00:00:37,375 We need to find out why. If it's something we can fix, great. 10 00:00:37,375 --> 00:00:42,458 If it's not, then unfortunately, it's a new handbrake lever, so the mechanism itself must secure it. 11 00:00:42,458 --> 00:00:44,541 The button itself, must release it back down. 12 00:00:45,375 --> 00:00:50,083 The other thing you need to have on a hand brake for the test is it should have reserved travel 13 00:00:50,416 --> 00:00:53,750 Okay if that travel is run to the top and that brake 14 00:00:53,750 --> 00:00:56,791 is still not fully engaged, that's an MOT fail as well. 15 00:00:57,125 --> 00:01:01,500 So the last part of this job where we're adjusting it is we need to get the right number 16 00:01:01,500 --> 00:01:05,666 of clicks from the bottom to the top to give us the reserve travel, OK? 17 00:01:05,666 --> 00:01:09,916 Generally, it's about four to five clicks if you go less than that. 18 00:01:09,916 --> 00:01:13,458 It's OK if you're quite strong and you can just pull the handbrake up. 19 00:01:13,750 --> 00:01:18,583 But for some customers, that's too tight and then you put the handbrake on and then they can't release afterwards. 20 00:01:18,583 --> 00:01:20,833 So we need to find a happy medium. 21 00:01:20,833 --> 00:01:27,083 So prerequisites for this before we kind of adjust it is we need to slacken the cable off itself. 22 00:01:28,208 --> 00:01:30,208 So we've got an adjuster and a lock nut. 23 00:01:30,208 --> 00:01:33,250 95% of vehicles now it's fitted inside the car. 24 00:01:33,791 --> 00:01:37,458 Years ago, some older vehicle it was underneath the vehicle, so we'd have to go 25 00:01:37,458 --> 00:01:40,500 and locate it, put it on a ramp and adjust it from underneath. 26 00:01:41,208 --> 00:01:44,750 But now they're kind of generally fitted inside, so it makes life a lot easier. 27 00:01:45,166 --> 00:01:48,041 So we've got an adjuster and a lock nut, so we slacken that off. 28 00:01:48,041 --> 00:01:51,708 Run it up so now we've got plenty of free play. 29 00:01:52,416 --> 00:01:54,458 This part is called a compensator. 30 00:01:54,458 --> 00:01:57,375 So on this brake system, we've got a short cable 31 00:01:57,375 --> 00:02:01,208 from the lever to the compensator and then a separate cable to each drum. 32 00:02:01,791 --> 00:02:04,250 What this means from a replacement point of view is 33 00:02:04,250 --> 00:02:07,750 we don't need to replace the whole part if we've got one defective item. 34 00:02:08,458 --> 00:02:13,083 OK, the cables are plastic coated and this is to resist corrosion if water gets in there. 35 00:02:13,083 --> 00:02:16,458 The job of this compensator, if I show you there is it moves side 36 00:02:16,458 --> 00:02:19,833 to side to take up any slack in one side or the other. 37 00:02:20,375 --> 00:02:23,041 Some vehicles, the way the handbrake set up, one 38 00:02:23,041 --> 00:02:26,541 cable is shorter than the other, so we must have a compensator in the middle. 39 00:02:26,541 --> 00:02:30,208 We'll cover electronic parking brakes in a separate video 40 00:02:30,583 --> 00:02:34,333 because that is a whole different set up regarding they're not very mechanical. 41 00:02:34,333 --> 00:02:36,458 It's all electrical and computer operated. 42 00:02:37,125 --> 00:02:41,125 OK, so we've slackened the adjuster right off as far as possible, 43 00:02:41,125 --> 00:02:46,666 we now need to pump the brake pedal as in the last video, just to check the drums are centralized. 44 00:02:47,083 --> 00:02:48,208 We turn them by hand. 45 00:02:48,208 --> 00:02:50,625 So light pressure on that side that's all good. 46 00:02:50,625 --> 00:02:52,666 Light pressure on that side. 47 00:02:52,666 --> 00:02:53,750 That's good as well. 48 00:02:53,750 --> 00:02:56,375 So we can know they're safe to adjust. 49 00:02:56,375 --> 00:02:58,375 OK, we're checking the cables for condition. 50 00:02:58,791 --> 00:03:01,416 They're all good, OK, they're secure. 51 00:03:01,416 --> 00:03:02,875 The ends haven't come out. 52 00:03:02,875 --> 00:03:04,958 There's nothing adrift. There's no water in there. 53 00:03:04,958 --> 00:03:08,916 That cover there just fits back over the side to keep it watertight. 54 00:03:09,416 --> 00:03:12,625 OK, if you do see a bit of corrosion on these, wipe over them 55 00:03:12,625 --> 00:03:16,000 with WD 40 or something similar and it just keeps the water at bay. 56 00:03:16,625 --> 00:03:19,750 OK, so now we need to see how many clicks we've got on our brake. 57 00:03:20,166 --> 00:03:21,416 So steady pressure. 58 00:03:22,750 --> 00:03:25,666 Yeah, so that has no reserve travel. 59 00:03:25,666 --> 00:03:29,000 That's right at the top, and the brakes aren't fully engaged. 60 00:03:29,000 --> 00:03:32,500 There's no way they'd hold the weight of the car, so we now need to adjust it. 61 00:03:33,083 --> 00:03:34,416 So if we take it back off. 62 00:03:34,416 --> 00:03:36,208 Double check it's spinning freely. 63 00:03:36,208 --> 00:03:42,375 That now means we know the linkage is okay, so we can push the cable through a bit and we just wind it down by hand. 64 00:03:43,375 --> 00:03:45,791 A bit of an estimate as to where you think it is, 65 00:03:45,791 --> 00:03:48,625 and then we'll reapply the brake. 66 00:03:52,750 --> 00:03:54,916 I'd say that was nine, I'd say that was too many, 67 00:03:54,916 --> 00:03:57,916 so we need to half that generally. 68 00:04:10,666 --> 00:04:13,125 Seven, heading in the right direction. 69 00:04:25,125 --> 00:04:27,166 Five, I'd say five is about right. 70 00:04:27,583 --> 00:04:30,333 So we check the rear brakes. We can't turn those. 71 00:04:32,458 --> 00:04:34,416 So they're engaged. 72 00:04:34,416 --> 00:04:37,125 This is where the important bit, this is your time consuming bit now. 73 00:04:37,125 --> 00:04:39,083 We release the brake off. 74 00:04:39,083 --> 00:04:42,000 And then we double check the drums are free. 75 00:04:42,000 --> 00:04:42,875 Yes, they are. 76 00:04:42,875 --> 00:04:46,333 If they're not, we need to find out why and if that involves taking the drums off. 77 00:04:46,333 --> 00:04:48,375 Unfortunately, that's the way we're going to have to go. 78 00:04:49,083 --> 00:04:51,458 Okay, so I'm happy with that now. 79 00:04:51,458 --> 00:04:54,375 We can now tighten the lock nut. 80 00:05:05,041 --> 00:05:06,500 Double check again. 81 00:05:10,708 --> 00:05:13,125 Yes, that's engaged, that's engaged now. 82 00:05:13,125 --> 00:05:15,125 We can now lift release the button. 83 00:05:15,625 --> 00:05:17,875 Spin the drums again. 84 00:05:17,875 --> 00:05:19,416 Happy with that. 85 00:05:19,416 --> 00:05:21,125 They're free enough. 86 00:05:21,125 --> 00:05:23,666 Last thing to do before we put the vehicle back together. 87 00:05:24,250 --> 00:05:29,708 Is wipe the lever, make sure that's good for the customer to have the vehicle back and then we can refit it. 88 00:05:30,083 --> 00:05:32,125 And then refit any trim we've taken out. 89 00:05:33,000 --> 00:05:37,208 Last thing road test the vehicle, make sure your rear brake service has been effective. 90 00:05:37,541 --> 00:05:41,833 Come back, double check your handbrake and then it's OK to hand back to the customer as completed. 91 00:05:42,500 --> 00:05:44,041 And that concludes this bit of the video.