Huck ALCOA 212, Instruction Manual, Page: 18 / 34

212
Series Tooling Alcoa Fastening Systems
16
T
ROUBLESHOOTING
Always check out the simplest possible cause of
a malfunction first. For example, an air hose not
connected. Then proceed logically, eliminating
each possible cause until the defective part is located. Where possible, substitute known good
parts for suspected bad parts. Use this page as
an aid in locating and correcting malfunction:
S
PARE PARTS AND SERVICE KIT
The quantity of spare parts that should be kept
on hand varies with application and number of
tools in service. Service parts kit containing per-
ishable parts such as O-rings, back-up rings, etc., should be kept on hand. Parts included in
SERVICE KIT 212KIT , are indicated by asterisks
(*) in PARTS LIST .
1. Tool fails to operate when trigger is depressed.
a. Throttle valve O-ring (53) or O-ring (54) worn or damaged.
b. Broken throttle cable.
2. Tool does not complete fastener installation or break pintail.
a. Air pressure too low. Set to 90 psi.
b. Hydraulic fluid low causing short stroke.
c. Air piston QUAD Ring (40) worn or damaged.
d. Air in hydraulic system (see
FILLING AND BLEEDING TOOL ).
3. Hydraulic fluid exhausts with air.
a. Worn or damaged O-ring (37) and Back-up Ring (36) or
O-ring (30); O-ring (33) and Back-up Ring (34); POLY-SEAL
(32) or QUAD Ring (31).
4. Hydraulic fluid leaks at Hydraulic Cylinder Head (14).
a. Worn or damaged Pull Piston Rod POLY-SEAL (7).
5. Hydraulic fluid leaks at Pull Piston Rod (6).
a. Worn or damaged Pull Piston Rod POLY-SEAL (7).
6. Pull Piston (6) will not return.
a. Broken or weak Spring (13).
7. Air leaks at air Cylinder Head (43).
a. O-ring (44) damaged.