You need to remove the black round knob on the main Hehr Door locking mechanism. Just turn it anti clockwise. If this doesn't work you will have to hold the shaft with a pair of long nosed pliers and turn the knob. The photo above left shows the knob removed (just above the screwdriver). Replace the knob with the nifty rectangular black plastic one supplied with your new door. It screws on clockwise as tight as you can get it to go. You do not need pliers. The white circle on the photo above shows the correct fitting of the new knob/handle. The long bit should point to the right when viewed from inside the motorhome. (see photo below right) Whilst talking about the Hehr lock many motorhomers fail to realise that the bottom lock will not work unless the knob is kept turned fully clockwise. Tony Toohill at Winnebago Warranty at Emu Plains, told us that it is the top "please help me" phone call he receives. So if your bottom lock doesn't and you aren't fitting a Roamsafe just yet, then just tighten this knob and it will work fine again.

Back to the new knob. This is much thinner than the old one and is changed to allow zero interference with door seals. You can get away without changing it if you never go on dirt roads. Now Kerry has accidentally solved the external Hehr lock not working problem. As the new lock is held on with a screw it is very simple to ensure that the handle goes on very tight and straight. You can now INSTANTLY notice if the lock is undone as it will no longer be horizontal. Interestingly the new knob doesn't seem to come undone all the time like the old one.

Before doing the next bit you need to understand how a "deadbolt" lock works. If you look at the two silver tongues or "bolts" coming out of the lock on the new door you will notice that they don't stick out very far. Now press the top smaller one with your finger and it will extend. The door could never shut with it extended this far. What happens is the small one hits the striker and allows the longer one to extend to fully lock the door.

We are now ready to fit the "keeper". This is that stainless steel gadget - beautifully made it is toooooo! First up we need to work out if all is well dimension wise. With the screen door open, hold the keeper with the "lip" on the edge of the rear door jamb. Make sure that the moving black lever is NOT in the vertical position. Hold it just below the Hehr striker and roughly with the small hole on the slotted side in the centre of the small bolt. Keeping your fingers on the back, try shutting the door. If it works you will hear the second bolt extend and "deadlock". The idea is to have vertical clearance in the slot. When you are happy with this put a pencil mark across the top.

If it all works OK, drill the bottom 5 mm hole and then remove the keeper and drill the lower 10 mm hole. Reassemble and test once again. Because there is slight give in some jambs you need to get into the habit of not slamming the door but more "pressing" it locked. A bit about the "snib" on the keeper. This we feel is a very nice touch. In the vertical position it stops the door from dead bolting. Kerry's idea here is that you have it up at night etc. In an emergency you then have to only open the normal Hehr handle to get out. With the snib in the down position you have to hold the Hehr and the Roamsafe handles to get out. Lots of thought has gone into the development of this door folks! Now if your door doesn't lock perfectly every time is can mean that you have a bowed jam. What this does is prevent the deadbolt from operating. Kerry has allowed for this problem and in your parts kit you will find a tiny white nylon "mushroom". Insert this into the small hole in the striker/keeper. What this does is increase the width of the keeper so the deadbolt will then work normally.

Magnets are used to hold the screen door against the main door - this is for when you clip the main door open and don't want a screen door. Hehr have used a mixture of ideas in this area for reasons not quite clear to us. Initially all Hehr doors came with magnets as standard for instance! The Roamsafe door comes with the magnets attached, so all you have to do is screw the opposite bits onto the inside of the main Hehr door. The photo above right shows a completed assembly.

The easiest way to do this, other than precision measure, is to place the bits onto the magnets, bring the doors together and mark the outside with pencil dots. Separate and screw on using the pencil dots as a guide. This worked OK for us, but as we help others fitting doors we may come up with a template or a less hit and miss method. The biggest problem faced by Kerry was the slight design changes in the Hehr doors.