Lubricating the Brake Caliper Slide Pin, Bosch Brakes
Warning: Breathing brake lining dust (asbestos or non-asbestos) could cause lung cancer or lung disease. Unless exposure can be reduced below legal limits, wear an air purifying respirator approved by MSHA or NIOSH at all times when servicing the brakes, starting with removal of the wheels and continuing through assembly.
Note: See the Bosch Pin Slide Disc Brakes Service Manual for more information, or take the vehicle to an authorized Freightliner dealer.
Apply 1/8 oz (3.5 g) Aeroshell grade 5 grease to each of the two guide pin and guide pin bore sets. See the Bosch Pin Slide Disc Brakes Service Manual for additional information.
Danger: The correct pins, bolts, and bolt torque must be used. If not, brake function could be impaired and lead to loss of control of the vehicle, which could result in personal injury, death, or property damage.
Important: The ZOH-T caliper assembly is similar in appearance to the existing ZOPS caliper. The only obvious difference is that one of the anchor plate slide pins (trailing side) has notches for identification. With ZOH-T calipers, install the solid pin (no bushing) only in the anchor plate leading hole position. Install the pin with the rubber bushing and notches only in the anchor plate trailing hole position. See Fig.. Tighten the leading-side pin first, then tighten the trailing-side pin.
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Flanged Bolt
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Leading Pin
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Trailing Pin
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Rubber Bushing
Fig. 1, ZOH-T Slide Pins and Bolts
Tighten ZOH-T bolts 93 to 107 lbf·ft (126 to 145 N·m). Tighten ZOPS bolts 70 to 80 lbf·ft (95 to 108 N·m).