Bought a used digimatic caliper 500 series at a garage sale. I need to know how to open it. I have used the round wheel thinking it would slide and it doesn't is there a trick?

call in a locksmith

Just ran into the same problem. Bought a caliper at a garage sale and it needed new batteries. When i put them in it was reading .006. I held the M button down for 2 seconds and it reset to .000

Hold the origin button for greater than 1 second. You may need to use a point tool to push the button all the way down.

Hi and welcome to FixYa, I am Kelly

Anything that burns produces Carbon monoxide. There is no way to physically vent the space heater but you can leave a side door open for air. The key is to notice the signs of nausea, the lack of ability to do things requiring manual dexterity / clumsiness, dizziness or a headache when your using the unit. Also... it is a good idea to have someone check on you about every 30 minutes if your working alone in a garage. Make sure they know how to turn off the heater and how to open your garage door. (just common sense stuff)

Thanks for choosing FixYa,
Kelly

I believe that the rear discs are warped or the tires are out of round when braking. More likely, the discs. --- The following are the instructions for replacing the front and rear pads for the front/back rotors. 1999-01 Grand Cherokee Front

1. Drain 2?3 of the brake fluid from the front reservoir. Use the bleeder screw at the front outlet port to drain the fluid. If equipped with anti-lock brakes, relieve the system pressure.
2. Raise and safely support the vehicle.
3. Remove the wheels.
4. Insert a small prybar through the caliper opening and pry the caliper (using the outboard brake pad) to bottom the pistons in the caliper bore. NOTE: This will back the brake pads off of the rotor surface to facilitate the removal and installation of the caliper assembly.
   
5. Pry the caliper support spring out of the caliper.
6. Remove both caliper slide pin bushing caps and slide pins.
7. Lift the caliper from the anchor.
8. Using a piece of mechanics wire, support the caliper so there is not tension on the brake hose.
9. Remove the brake pads from the caliper. Fig. 2: Installing the inward brake pad on the front caliper pistons - 1999-01 Grand Cherokee
   To install:
   
10. Position the brake pads onto the caliper.
11. Position the caliper into place on the anchor.
12. Coat the caliper slide pins with silicone grease and torque them to 21-30 ft. lbs. (29-41 Nm). Install the slide pin bushing caps.
13. Install the caliper support spring in the top of the caliper under the anchor; then, install the other end into the lower caliper hole. NOTE: Hold the spring in the caliper hole with your thumb while prying the spring end out and under the anchor.
    
14. Fill the master cylinder with fluid and bleed the brake system.
15. Before driving the vehicle, pump the brakes several times to seat the pads.
16. Install the wheels.

Rear

1. Drain 2?3 of the brake fluid from the front reservoir. Use the bleeder screw at the front outlet port to drain the fluid. If equipped with anti-lock brakes, relieve the system pressure.
2. Raise and safely support the vehicle.
3. Remove the wheels.
4. Insert a small prybar through the caliper opening and pry the caliper (using the outboard brake pad) to bottom the piston in the caliper bore. NOTE: This will back the brake pads off of the rotor surface to facilitate the removal and installation of the caliper assembly.
   
5. Pry the caliper support spring out of the caliper.
6. Remove both caliper slide pin bushing caps and slide pins.
7. Lift the caliper from the anchor.
8. Using a piece of mechanics wire, support the caliper so there is not tension on the brake hose.
9. Remove the brake pads from the caliper. Fig. 3: Installing the inward brake pad on the rear caliper piston - 1999-01 Grand Cherokee
   To install:
   
10. Position the brake pads onto the caliper.
11. Position the caliper into place on the anchor.
12. Coat the caliper slide pins with silicone grease and torque them to 21-30 ft. lbs. (29-41 Nm). Install the slide pin bushing caps.
13. Install the caliper support spring in the top of the caliper under the anchor; then, install the other end into the lower caliper hole. NOTE: Hold the spring in the caliper hole with your thumb while prying the spring end out and under the anchor.
    
14. Fill the master cylinder with fluid and bleed the brake system.
15. Before driving the vehicle, pump the brakes several times to seat the pads.
16. Install the wheels.

Brake Pads Removal & Installation Front To Remove:

1. Remove the front wheels. Front brake caliper (exploded view)
   
   
2. Loosen the caliper bleeder.
3. Hold the slide pin; remove the 2 mounting bolts and remove the brake caliper from the support.
4. Support the caliper.
5. Open the brake bleeder. Press the caliper piston into the bore.
6. Close the bleeder after the piston has reached the bottom of the caliper bore.
7. Remove the brake pads, support plates, wear indicators and anti squeal shims.
8. Remove the slide pins and bushings from the caliper support.

To Install:

1. Lubricate the slide pins and bushings with brake grease.
2. Install the bushing on the slide pin.
3. Install the slide pin on the caliper support.
4. Install the brake pad support plates on the caliper supports.
5. Lubricate the anti squeal shims with brake grease.
6. Install the anti squeal shims on the brake pads.
7. Install the pad wear indicator facing upward and install the pads on the caliper support.
8. Install the caliper on the support.
9. Install the 2 mounting bolts, hold the slide pins and tighten 25 ft-lb (34 Nm).
10. Fill the reservoir and bleed the brakes.
11. Install the front wheels.

Rear To Remove:

1. Remove the rear wheels.
2. Loosen the caliper bleeder. Rear brake caliper (exploded view)
   
   
3. Hold the slide pin; remove the 2 mounting bolts and rear brake caliper assembly from the support.
4. Support the caliper.
5. Open the brake bleeder. Press the caliper piston into the bore.
6. Close the bleeder after the piston has reached the bottom of the caliper bore.
7. Remove the brake pads, support plates, and anti squeal shims.
8. Remove the slide pins from the caliper support.

To Install:

1. Lubricate the slide pins with brake grease.
2. Install the slide pin on the caliper support.
3. Install the brake pad support plates on the caliper supports.
4. Lubricate the anti squeal shims with brake grease.
5. Install the anti squeal shims on the brake pads.
6. Install the rear pads on the caliper support.
7. Install the rear caliper on the support.
8. Install the 2 mounting bolts, hold the slide pins and tighten 25 ft-lb (34 Nm).
9. Fill the reservoir and bleed the brakes.
10. Install the front wheels.

Jack truck up, remove wheel, remove caliper slide bolts (12mm i think), remove caliper. caliper mounting bracket will stay on truck if you are just doing a pad slap, the mounting bracket comes off with two bolts (18 mm i think) remove old pads, compress caliper piston with channel locks or a c-clamp, replace pads, lube up caliper slides with dielectric grease , tighten slide bolts, replace wheel. proceed to other side. Then befor you road test pump the break pedal. Once ya get a look at it, its pretty easy to see what ya need to do. Front and rear ar pretty mush the same.

The battery compartment is on the front of the instrument. The cover is round and has some symbols that resemble arrows pointing down. Slide the round cover down to access the battery.

Jack car up, spin wheel, then apply brakes, and release and try spinning wheel again. If it doesn't spin just as easy, try cracking bleeder screw open, then try spinning wheel. If it spins easy after you crack bleeder screw, tighten bleeder back up & try same again. If same result, wheel spins when bleeder opened, then I'd replace the 2 front flex hoses that attach to calipers. If caliper doesn't release then you need to pull calipers and check if partially seized, or maybe slide pins that caliper moves on (that attach caliper to spindle) need cleaning and lube applied to allow calipers to move back & forth.

hiya this does sound iffy ? but b4 i comment /offer an opinion could you or your friend jack up the wheel in question that has had repair and look at how the brake disc is secured to the actual hub assy that wheel bearing is housed in ? also caliper? cracked?? is it now a new one? have never had problem renewing front or rear bearings in past using the correct tool/s a hydraulic press is the best method for removing excessive siezed components as for your friend now saying noise is from rear ? it may be pads worne or disc/s corrosion/scoured so investigate and update what you discover ? sounds like big hammer garage?