Brakes - Front Disc Removal and Installation Procedure
88mitsubishi01SUBJECT:
PRECIS FRONT BRAKE DISC
REMOVAL AND INSTALLATION PROCEDURE
NO. TSB-88-05-001
DATE January, 1988
MODEL 1987-1988 Precis
TSB Revision: TSB-88-05-001
PURPOSE
This bulletin contains a new procedure which allows the front brake disc to be removed without removing the drive shaft. This procedure is easier and quicker than the procedure described in the Service Manual. Because this new procedure takes less time to perform, the warranty time allowance has been decreased. As reference to this bulletin, please write the TSB number on the bottom of page 580-27 in the 1987 Precis Service Manual and page 58-28 in the 1988 Precis Service Manual.
FIGURE 1:
REVISED BRAKE DISC REMOVAL PROCEDURE
1. If the vehicle is equipped with steel wheels, remove the wheel cover or hubcap. Then remove the cotter pin and drive shaft lock nut from the drive shaft (Figure 1). If the vehicle is equipped with aluminum wheels, proceed to step 2.
2. Raise the vehicle on a jack or hoist and remove the front wheels and tires.
3. If vehicle is equipped with aluminum wheels, remove the cotter pin and wheel bearing nut from the driveshaft (Figure 1). It may be necessary to use an impact wrench to remove the nut with the wheels off the vehicle.
4. Remove the front brake pads as described in the appropriate Service Manual.
FIGURE 2:
5. Remove the front brake caliper assembly (Figure 2). Do not disconnect the brake fluid line. Support the caliper assembly with mechanics wire.
CAUTION:DO NOT ALLOW THE CALIPER TO HANG BY THE BRAKE HOSE. THE BRAKE HOSE COULD BE DAMAGED.
FIGURE 3:
6. Remove the hub/disc assembly from the drive shaft using an axle puller, Special Tool P/N MB990241-01 (Figure 3).
NOTE: IF EXCESSIVE FORCE IS USED ON THE PULLER AND THE HUB/DISC ASSEMBLY STILL CANNOT BE REMOVED FROM THE DRIVE SHAFT AND KNUCKLE, USE THE BRAKE DISC REMOVAL PROCEDURE DESCRIBED IN THE SERVICE MANUAL.
FIGURE 4:
7. Mount the hub and disc assembly in a softjawed vise and separate the disc from the hub (Figure 4).
BRAKE DISC INSTALLATION PROCEDURE
1. Mount the hub in a soft-jawed vise and bolt the disc to the hub using the four bolts (Figure 4). Tighten the bolts to 36-43 ft.lbs. (49-59 N-m).
FIGURE 5:
2. Install the hub and disc assembly on the drive shaft and draw it on to the axle fully by tightening the axle lock nut to 145-188 ft.lbs. (196-255 N-m). Install a new cotter pin through the lock nut and drive shaft (Figure 5).
3. Remove all dirt, oil, grease, etc. from the brake disc using brake cleaner.
FIGURE 6:
4. Install the caliper assembly and tighten the two bolts to 43-58 ft.lbs. (59-78 N-m) (Figure 6).
5. Install the brake pads.
6. Install the tire/wheel assembly and torque the nuts to the appropriate specification shown below.
Steel Aluminum
Wheel Alloy Wheel
50-58 ft.lbs. 58-72 ft.lbs.
(70-80 N-m) (80-100 N-m)
CAUTION: DO NOT USE AN IMPACT WRENCH TO TIGHTEN THE WHEEL NUTS.THE USE OF AN IMPACT WRENCH MAY RESULT IN OVERTORQUING, WHICH MAY DAMAGE THE WHEEL NUTS, STUDS AND/OR THE WHEEL. USE A TORQUE WRENCH TO TIGHTEN THE WHEEL NUTS.
REVISED PRECIS LABOR OPERATION TIMES SCHEDULE (L.O.T.S.) INFORMATION
The revised labor time allowances for operation codes 58118R00 and 58117R00 are effective upon receipt of this bulletin.