Aimco Brakes Pulse Tool UXT UXRT AlphaT Series Pulse Unit Repair Manual

 
 
 
 
 
 
 PO Box 16460, Portland, OR  97292-0460  503-254-6600  Fax 503-255-2615  
 
 
 
 
 
 
 
 
 
UX-T, UXR-T and ALPHA-T Series 
Pulse Unit Repair Manual 
 
 
 
 
 
 
 
 
 
 
ISO 9001: 2015 Certified  

 
 
 
Contents 
 
 
 Page 
 Number 
 
1. Recommended Tools 4 
 
2. Pulse Unit Repair Jigs 5-7 
 
3. Disassembly and Reassembly of the Pulse Unit 8-12 
 
4. Fill, Draw & Torque Sheet 13 
 
5. Exploded View of the Pulse Unit 14 
 
6. Recommended Maintenance 17 
 
 
  

 
- 4 -  
 
Recommend Tools 
 
1. One Set T-handle Metric Allen Wrenches 
 
2. Flat-Bladed Screwdrivers 
 
3. 10 oz. Ball Peen Hammer 
 
4. One Set Pin Punches 
 
5. One Set O-Ring Picks 
 
6. 6” Adjustable End Wrench 
 
7. 12” Adjustable End Wrench 
 
8. Medium Pair of Channel Locks or 
Adjustable Jaw Pliers 
 
9. Medium Honing Stone 
 
10. 220 Grit Wet/Dry Sandpaper 
 
11. Lap Plate 
 
12. Loc-Tite #242 
 
13. Arbor Press 
 
14. VC-101-2A Vacuum Tank 
 
15. VCE-1-1 Vacuum Extractor 
 
16. 1cc and 3cc...

 
- 5 -  
 
  
Pulse Unit Repair Jigs 
 
 
Jig for Setting Teflon Seal   Part 
Number 
 
Tools Jig is Used With  178-319-8-1 
995-512-0-1 
 UX-450 
UX-622 
 UX-500 
ALPHA-50 
 UX-612 
ALPHA-60 
 
 178-350-9-2 
995-512-0-1 
 UX-450D 
UX-622D 
 UX-500D 
ALPHA-50D 
 UX-612D 
ALPHA-60D 
 
194-319-3-1  UX-T900  UX-T1000  UX-T1300  ALPHA-90  199-319-6-1  UX-T1620     995-500-0-1  UXR-T2000    
 
Jig for Holding & Pressing in the Accumulator   Part 
Number 
 
Tools Jig is Used With  
150-972-5-1 
 
ALPHA-T47...

 
- 6 -  
 
Pulse Unit Repair Jigs (cont.) 
 
 
Glass Syringe   Part 
Number 
 
Tools Jig is Used With  
188-902-0-2 (1cc) 
 
All Models  
915-176-0 (3cc) 
 
All Models  
195-179-0 (Needle) 
 
All Models 
 
Pulse Unit Fluid   Part 
Number 
 
Tools Used With  
PULSTAR 
 
All Models except ALPHA-T45, T50 and UBP-7 Series  
SPF-Oil 
 
ALPHA-T45, T50 and UBP-7 Series only 
 
Jig Set-In O-Ring   Part 
Number 
 
Tools Used With  
990-319-0-1 
 
U-310SD 
 
U-350D 
 
U-350SD   
990-320-0-1 
 
UX-500 
UX-900...

 
- 7 -  
 
Pulse Unit Repair Jigs (cont.) 
 
 
Jig For Placing Anvil C/W Driving Blades Into Liner   Part 
Number 
 
Tools Used With  
190-440-6-1 
190-440-6-0 
 
UX-500 
UX-622 
 
UX-602 
 
UX-612 UX-620 
 
194-440-2-1 
194-440-2-0 
 
UX-700 
 
UX-800 
 
UX-T700 
 
UX-T800 
 
194-440-3-1 
194-440-3-0 
 
UX-900 UX-T900   
 
194-440-6-1 
194-440-6-0 
 
UX-1000 
 
UX-1300 
 
UX-T1000 
 
UX-T1300 
 
195-440-6-1 
195-440-6-0 
 UX-1400  UX-1620  UX-T1400  UX-T1620 
 
195-440-9-1 
195-440-9-0 
 UXR-1820...

 
- 8 -  
 
Disassembly and Reassembly of the Pulse Unit 
 
UX-T, UXR-T & Alpha-T Series 
 
A. Disassembly/Reassembly of Pulse Unit 
 
1. Remove the front casing from the tool. 
 
2. Remove the Oil Fill Plug and vacuum the oil out of the Pulse Unit with the VCE-1-1 Vacuum 
Extractor. 
 
3. Set the Liner Casing Setter, located at the rear of the Pulse Unit, onto the correct size pins in the 
blocks of the setter.  Note:  This is a left-hand thread. 
 
4. Place Pulse Unit assembly onto the correct size...

 
- 9 -  
 
Disassembly and Reassembly of the Pulse Unit (cont.) 
 
 
B. Inspection 
 
1. Front Liner Plate 
 
a) If light scarring on plate surface is present, resurface on Lap Plate in a figure eight motion 
with 220 grit sandpaper (wet or dry) using honing oil as a buffer.  Note:  All markings must 
be removed. 
 
b) If heavy scars or burring are present and cannot be resurfaced smooth, replace parts as 
needed. 
 
2. Rear Liner Plate 
 
a) If light scarring is present, resurface plate on lap in the...

 
- 10 -  
 
Disassembly and Reassembly of the Pulse Unit (cont.) 
 
 
6. Torque Adjuster/Relief Valve 
 
a) Check the adjuster for straightness; also check Allen end for cracking, damaged, or stripped 
threads.  If damage is present, replace. 
 
b) Check the Ball seat for oblonging. 
 
7. Liner Casing 
 
a) Check for internal scars and burring. 
 
b) Check internal threads for burrs. 
 
8. Anvil 
 
a) Check plate surface of Anvil.  If light scarring or uneven wear is present, resurface with 
medium oil...