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Remove/Install Front Axle Brake Caliper Guide - Ar42.10-D-0401TS

Model 907 

MODIFICATION NOTES

07.06.2019 Work procedure revised The whole document

Shown on model 907 with code IT5 (5.0 tons), left side of vehicle 

G13787459
  Risk of accident  when commissioning the vehicle due to a lack of braking effect when the service brake is operated for the first time after repair work. Before starting the engine, actuate brake pedal several times until pressure is built up and maintained in the brake system. AS42.50-Z-0002-01A 
CAUTION Risk of poisoning  from swallowing brake fluid. Risk of injury  from skin and eye contact with brake fluid Only pour brake fluid into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling brake fluid. AS42.50-Z-0001-01A 
  Brake fluid notes   AH42.50-P-0001-01A 
  Notes on repairs to brake system   AH42.00-P-0003-01A 
REMOVING Remove     
1 Remove brakepads (8).   AR42.10-D-1610TS 
2 Remove respective brake caliper (3). IMPORTANT Do not detach brake hose.
Dispose of dust caps (1) and bolts (2).
AR42.10-D-0070TS 
3 Remove anti-rattle springs (9) from brake caliper support. IMPORTANT Dispose of anti-rattle springs (9).  
4 Remove guide pins (5, 6) and boots (7). IMPORTANT Firstly push guide pins (5, 6) out of guide in direction of brake disk; then remove boots (7).
IMPORTANT Dispose of guide pins (5, 6) and boots (7).
 
CLEANING Clean     
5 Clean contact surfaces on brake caliper support. SPECIAL TOOL Brake caliper brush Fig 1
6 Clean dust cap seat and coat with lubricating grease from repair kit.    
7 Clean seats of guide pins (5, 6). Assembly cleaner *BR00.45-Z-1028-04A 
INSPECT Check     
8 Check brakepads (8) for damage and wear.    
REFER TO MAINTENANCE Assess condition of brake linings If corresponding findings are present,
AP42.10-D-4252TS 
    Replace brakepad (8) on front axle.  
9 Check brake disk for damage and wear.    
REFER TO MAINTENANCE Assess condition of brake disks If corresponding findings are present,

replace front axle brake disks.
AP42.10-D-4256TS 
    Remove/install front axle brake disk AR42.10-D-0230TS 
10 Check brake caliper (3) for damage and leakage. If the brake caliper (3) is damaged or leaking or a boot of a brake piston is damaged,

replace brake caliper (3).
Remove/install front axle brake caliper
AR42.10-D-0070TS 
INSTALLING Install     
11 Coat new guide pins (5, 6), new boots (7) and guide bores in the brake caliper (3) with lubricating grease from repair kit.    
12 Install boots (7) in grooves on brake caliper (3) from brake disk side. NOTES
Make sure that the boots (7) are seated correctly in the grooves on the brake caliper (3).
Otherwise, the brake caliper (3) can no longer move freely.
 
13 Install guide pins (5, 6). NOTES
Ensure that the boots (7) are seated correctly in grooves of guide pins (5, 6).
Otherwise, the brake caliper (3) can no longer move freely.
IMPORTANT Install guide pin (5) with guide ring (4) in upper guide bore and guide pin (6) in lower guide bore.
IMPORTANT Push each of the guide pins (5, 6) into each guide bore from outside in direction of brake disk.
Remove excess lubricating grease.
 
14 Allow existing air to escape from the boots (7). NOTES
Make sure that the boots (7) are correctly seated on the brake caliper (3).
Otherwise, malfunction or damage can occur.
IMPORTANT For this, lift respective boot (7) at one point a little out of the groove of the respective guide pin (5, 6) and allow air to escape.
 
15 Install new anti-rattle springs (9) on brake caliper support.    
16 Install brake caliper (3). IMPORTANT Use new dust caps (1) and bolts (2). AR42.10-D-0070TS 
17 Install brakepads (8). If the brakepads (8) are reused,

install brakepads (8) at previous positions.
AR42.10-D-1610TS 
18 Build up brake pressure by fully depressing brake pedal several times.    
19 Check fill level in brake fluid reservoir. If the brakepads (8) have been replaced.  
REFER TO MAINTENANCE Brake system - inspect fluid level If the fill level is incorrect,

correct fill level.
AP42.10-D-4210TS 
REFER TO CAPACITIES & SPECIFICATIONS   Brake fluids (DOT 4 plus)
IMPORTANTCommercially available devices/tools 
Extraction bellows
BB00.40-P-0331-00A
INSPECT Check     
WARNING Risk of accident  from vehicle starting off by itself when engine running. Risk of injury  (bruises and burns) resulting from working on the engine while it is being started or when it is running. Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. AS00.00-Z-0005-01A
20 Check brake system for leaks.   AR42.10-D-0100-01TS 
21 Perform brake test.    
REFER TO MAINTENANCE Brake test   AP42.00-D-4290TS 
Fig 1: Brake Caliper Brush (000 589 26 68 00)
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REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1028-04A Assembly cleaner A 000 986 56 01