AMMCO 2645 Scribe Toe Gauges User Manual

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Operating Instructions

with Parts Identification

READ these instructions before placing unit in service. KEEP these and other materials delivered with the unit in a binder near the machine for ease of reference by supervisors and operators.

Model 2635 - Car/Light Truck Model 2645 - Heavy-Duty Truck

Scribe Toe Gauges

1601 J. P. Hennessy Drive, LaVergne, TN USA 37086-3565 615/641-7533 800/688-6359 Manual Part No.: 924230 06 HENNESSY INDUSTRIES INC. Manufacturer of AMMCO

, COATS®and BADA®Automotive Service Equipment and Tools. Revision: 01/05

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2 • AMMCO

Assembled Toe Gauge

In measuring toe we are determining if the two wheels are closer together at the front or at the back of the tires. The AMMCO toe gauge measures this accurately by eliminating error due to tire or wheel runout.

Drive the vehicle onto an alignment rack or level surface. Check for worn front end parts and loose wheel bearings. Check for proper tire pressure and equal tire tread depths.

1. Raise the vehicle and, while rotating each tire, make a wide mark near the center of the tread with chalk.

2. Place the toe gauge in front of the wheels and adjust it so the pointers are near the center of the chalk mark on each wheel.

3. Scribe a line in the chalk mark on each tire by holding the respective pointer securely against the tire in one position while rotating the tire, Fig. 1. Note: The beginning and the end of the line must intersect, if not, re-chalk and re-scribe.

Figure 1 - Scribing Line In Chalk Mark

4. Lower the vehicle on a set of turntables and bounce it in the middle of the bumper to allow the suspension to assume its natural attitude.

5. Place the toe gauge behind the tires. Adjust the pointers to spindle height. Align the fixed pointer with the line scribed on the tire. Set the adjustable pointer at “0”, loosen the thumb screw in the center of the gauge, and slide the entire assembly so the adjustable pointer is aligned to the line scribed on the other tire.

Recheck that all thumb screws are tight and that both pointers are aligned with the scribe marks, Fig. 2.

Figure 2 - Gauge Placed Behind Front Wheels To Measure

Distance Between Chalk Marks

6. Move the gauge, without bumping the pointers, to the front of the wheels. Set the stationary pointer on the left tire’s scribe mark. Align the adjustable pointer with the right tire scribe mark by turning the pointer adjusting thumb screw, Fig. 3.

Figure 3 - Aligning Pointer With Chalk Marks At The Front Of

The Front Wheels

7. READ THE SCALE. If the pointer has moved to the right, toe-out readings are indicated. If the pointer has moved to the left of zero, toe-in readings are indicated, Fig. 4. RECORD THE READING.

Figure 4 - Pointer To Left Of Zero; Toe-In

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AMMCO • 3

Parts Identification

Item Part No. Qty. Description

1 924222 1 Gauge Head Assembly,

Car

924217 1 Gauge Head Assembly,

Truck 2 903180 2 Screw, Set Cup Point 3 924221 1 Leg, Car

924216 1 Leg, Truck 4 910745 3 Plug 5 906854 3 Screw, Lock 6 924210 1 Scale 7 907838 1 Screw, Thumb 8 924220 1 Post, Pointer Car

924214 1 Post, Pointer Truck 9 924215 1 Quadrant

10 925640 1 Nut, Lock 11 900212 1 Screw, Set 12 924212 1 Pivot, Pointer 13 924213 1 Pointer 14 920688 1 Spring, Plunger 15 907824 1 Plunger, Pointer 16 924211 1 Screw, Shoulder 17 923584 1 Cover, Lock Knob

Item Part No. Qty. Description

18 907881 *2 Bar, Head

19 907888 1 Bar, Scribe 20 907890 *2 Screw, Thumb 21 924227 1 Scribe Assembly, Car

924226 1 Scribe Assembly, Truck 22 925142 4 Pad, Foam 23 924223 1 Leg, Car

924216 1 Leg, Truck 24 907838 1 Screw, Thumb 25 924228 1 Shaft, Scriber Car

924225 1 Shaft, Scriber Truck 26 924224 1 Scriber

*Quantity 1 For Cars

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