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Technical BulletinProduct Improvement News
TB-2008-6May. 14, 08
Page 1 of 5 Pages
Harlan Tractor Rear Brake CaliperConfiguration
May 14, 2008
Technical BulletinProduct Improvement News
TB-2008-6May. 14, 08
Page 2 of 5 Pages
Harlan Global Manufacturing27 Stanley Road
Kansas City, KS 66115
Phone Numbers
USA ..................................................................800 255-4262
Canada............................................................... 800 767-4275
Direct.................................................................913 342-5650
Fax ....................................................................913 321-5802
Department Extensions
Sales ........................................................................217
Warranty..................................................................258
Non-Warranty Technical Support ............................192
Parts and Service Manual Feedback .........................264
e-Mail:
General: [email protected]
Warranty:..........................................warranty@harlan-corp.com
Sales: ................................................sales@harlan-corp.com
Internet
Home Page ........................... www.harlan-corp.com
Technical Bulletins ............... www.harlan-corp.com/tech_bulletin.asp
Technical BulletinProduct Improvement News
TB-2008-6May. 14, 08
Page 3 of 5 Pages
A. Introduction
Equipment Affected
This bulletin applies to all Harlan Tractors when the rear brake calipers are upgraded from thefollowing:
02026-0111, Caliper, Brake Assy, L.H. and 02026-0112 Brake Caliper Assembly, RH or
02026-0347, Brake Caliper (Left/Dual) and 02026-0348, Brake Caliper (Right Dual) to
02026-0544, Brake Caliper, loaded LH / RH.
Part Description
02026-0544, Brake Caliper, loaded LH / RH
Background
Harlan Global Manufacturing replaced position specific rear brake calipers 02026-0111,02026-0112, 02026-0347 and 02026-0348 with the 02026-0544, which can be configured for anyposition on 2-caliper and 4-caliper rear axles.
Possible Failure
N/A
Correction Procedure
N/A.
B. Parts Supplied by Harlan Global
Manufacturing
N/A
Technical BulletinProduct Improvement News
TB-2008-6May. 14, 08
Page 4 of 5 Pages
C. Required Actions
2-Caliper AxlesThe 02026-0544 Caliper is complete and ready to install on 2-caliper axles. Each caliper has twoports for brake hose connections. Use one and leave the other one plugged.
4-Caliper Axles with Two TeesTractors with 4 four rear calipers and no front brakes have two tees on the rear axle.
Figure 1, Dual Tee, 4-Caliper Installation
1. Install the rear calipers as shown with the ports facing towards the center of the axle.
2. Install two 02015-0002 Hoses between the front tee and the front calipers.
3. Install two 02015-0002 Hoses between the rear tee and the rear calipers.
Note: The plugged ports can be in the upper or lower positions. Consistency isrecommended, but not required.
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Technical BulletinProduct Improvement News
TB-2008-6May. 14, 08
Page 5 of 5 Pages
4-Caliper Axles with Single TeesTractors with four rear calipers and front brakes have one tee on the rear axle.
Figure 2, Single Tee -4 Caliper, Connections
1. Install the calipers on the axle as shown inFigure 1, Dual Tee, 4-Caliper Installation.
2. Remove the plugs from the front calipers.
3. Connect a 02015-0002 brake hose from each side of the tee tothe to the lower port of each front caliper.
4. Connect a 02026-0574 caliper-to-caliper hose between the upper ports of the front and rearcalipers on each side of the axle. Fasten each end of the caliper-to-caliper hose using one02000056171 Hollow Bolt and two 00700830221 copper washers as shown. Note that therecessed side of the hose connection (Inset) faces the caliper.
5. Leave the lower ports on the rear calipers plugged.
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