Mechanical Trouble Shooting - DENTSPLY ProMix 400 Repair Manual

7.3.1
Capsule remains locked in arm.
Possible Problem
A. Arm release
7.3.2
Unit moves from vibration during operation.
Possible Problem
A. Broken or loose conical springs
7.3.3
Capsule arm drops and hits the window during operation.
Possible Cause
A. Broken tail spring
Tail Spring
Figure 6b
MECHANICAL FAILURES
Solution
Locate the arm release mechanism Fig 5b. and
press A and B together repeatedly in the direction
of the arrows.
Solution
Open the unit and check the conical springs located
in Fig. 6a. If a spring is broken or loose, replace
motor assembly.
(see assembly/disassembly)
Solution
Locate the tail spring (Fig 6b). Cut tail spring in
half and change. Never reuse tail spring.
14
Arm Assembly
Figure 6c