maintenance instructions
page 7 of 8
Model PFI--1
PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457--4926
UNITED STATES OF AMERICA E--Mail [email protected]
TEL. 860--347--7271 FAX. 860--347--6978 WWW.jarvisproducts.com
®
JARVIS
6223015:.
5.4 Remove retaining rings (item 27) or cotter pins
(item 28) and pivot pins (item 24). Use a pin
punch to drive pivot pins out through holes in
frame and cylinder housing (item 17).
5.5 Slide the single and double claws (items 29 and
26) and bushings (item 25) out from piston rod
and yoke (item 22).
5.5.1 Remove the single and double claws and
bushings out from either side of the frame
and cylinder housing (item 17).
5.5.1.1 Remove the claws with the extension
spring (item 23) still attached to both
claws.
5.6 Remove extension spring (item 23).
5.7 Remove bushings (item 25) from single and
double claws (items 29 and 26).
5.8 Clean and inspect all parts for wear and replace
them if necessary.
6 SINGLE AND DOUBLE CLAW INSTALLA-
TION:
6.1 Reverse steps and procedures outlined in section
5.
See notes below
.
Refer to Figure 2 as a guide.
6.1.1 Align holes in piston rod and yoke (item 22),
bushings (item 25), and single and double
claws (items 29 and 26) with the top and bot-
tom holes of frame and cylinder housing
(item 17) to install retaining rings (item 27)
or cotter pins (item 28) and pivot pins (item
24).
6.1.1.1 Slide pivot pins (item 24) through the
holes using a drive pin to hold pivot pins
in place while securing the retaining
rings (item 27) or cotter pins (item 28)
to them.
6.1.1.2 Use a 1/4 inch nut driver to push retain-
ing rings (item 27) securely onto pivot
pins (item 24) or push cotter pins (item
28) with a flat screw driver blade.
7 PISTON AND SEAL REMOVAL:
DISSIPATE STORED ENERGY FROM CYLINDER
HOUSING BEFORE PERFORMING ANY MAINTE-
NANCE OR REPAIRS.
Retaining Ring
Drive Pin
Pivot Pin
Retaining Ring
Pivot Pin
Nut Driver (1/4 inch)
Figure 2
Single and Double Claw
Installation
Push retaining rings
onto pivot pins.
Hold pivot pins in
place with drive pin
Double
Claw
Piston Rod
and Yoke
7.1 Disconnect hose from quick connect plug (item
3).
7.2 Slide piston rod and yoke (item 22) into frame
and cylinder housing so that piston assembly
(items 34 and 36) is all the way to the back end
of the frame and cylinder housing (item 17).
7.3 Remove retaining ring (item 39) and end cap
(item 38).
7.4 Remove o--ring (item 37), if necessary.
7.5 Remove hex nut (item 35).
7.6 Remove piston (item 34) and U--cup seals (item
36).
7.7 Clean and inspect all parts for wear and replace
them if necessary.
