Trimble S - Horizontal servo motor & angle unit; SRC board incl. magnets and angle disc replacement

Chapter 5
Maintenance and Repair
P/N 57150002, Revision 5.0 5 - 59 Trimble S, VX, SPS & RTS Service Manual
F
Horizontal servo motor & angle unit
• SRC board incl. magnets and angle disc replacement
• MSB board incl. motor winding replacement
• Accelerometer replacement
Tools and equipment
Avoid removing the SRC board incl. magnets from the angle disc, if done the SRC board incl.
magnets needs to be entered to the angle disc using a centring tool, see page 5-60.
SRC board incl. magnets and angle disc replacement
Performance
Description Part number
Lock ring removal tool for horizontal angle disc 59060002
Centring tool horizontal sensor 59029001
Torque wrench 120 Ncm T71600280
Torque wrench, 500 Ncm T71600281
Torx T10 bit Local tool
Item Performance Action Results Notes
1 Remove horizontal
turning unit.
See page 5-55.
2 Remove SRC board
incl. magnets.
A. Disconnect cable.
B. Remove the three
screws and lift up the
magnet holder.
Use a torque wrench
with a torx T10 bit.
Fig. 5-56 SRC board incl. magnets replacement
Cable