Jarvis 425-16, Руководство по эксплуатации, Страница: 15 / 16

Model 425--16
page 15 of 16
PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926
UNITED STATES OF AMERICA E--MAIL.
jarvis.products.corp@snet.net
TEL. 860-347-7271 FAX. 860-347-6978 WWW.
jarvisproducts.com
JARVIS
6225030::.
®
1.6 Inspect blades (item 44) for wear and sharpen or
replace as necessary. Refer to Sections 3 and 4
as a procedural guide.
1.7 Check that the blades are opening and closing
smoothly and that they are meshing properly. If
the blades do not have a smooth sliding contact
during cutting, the main pivot blade pin (item
42) and hex lock nut (item 50) must be adjusted.
Tighten until smooth operation is lost, then back
off slightly. Do not over--tighten.
2 WHEN NECESSARY:
2.1 Disassemble, clean and inspect link assembly.
Refer to section 5 as a procedural guide.
2.2 Disassemble, clean and inspect cylinder
assembly.
Refer to section 7 as a procedural
guide.
3 BLADE DISASSEMBLY:
3.1 Remove hex lock nut (item 50) and blade pin
(item 42).
3.2 Remove hex lock nuts (item 47) and link pins
(item 46).
3.3 Remove wear plates (item 43).
3.4 Remove blades (item 44).
3.5 Inspect all parts for wear and replace if
necessary.
3.5.1 Inspect blades for wear and sharpen or
replace as necessary.
Refer to Figure 2
below, for proper sharpening angle of
blade.
Figure 2
Blade Sharpening
Angle
Sharpen Here
4 BLADE ASSEMBLY:
4.1 Reverse steps and procedures outlined in
section 3.
4.2 Apply light coat of Jarvis
1315 White Grease
to
sliding surface of each blade (item 44) prior to
insertion into clevis housing (item 51).
4.3 Make sure curved end of wear plates (item 43)
are facing away from blades.
4.4 Tighten hex lock nut (item 50) from 100--120
lbf--in (11.3--13.6 N--m). Refer to section 1, step
1.7 if further blade adjustment is necessary.
4.5 Apply Jarvis
1315 White Grease
to the top holes
in blade and link pins (items 42 and 46).
5 LINK DISASSEMBLY:
5.1 Remove blades (item 44). Refer to section 3 as
a procedural guide.
5.2 Disconnect tubing (items 36 and 57) from
fittings (items 10 and 11). Note: This step
applies to 425--16 model 4025072 only. Tubing
does not need to be disconnected for 425--16
model 4025075 with pistol grip handle.
5.3 Unscrew and separate cylinder (item 18) from
clevis housing (item 51) by loosening locking
ring (item 24). Jarvis wrench, part number
8039092 is available.
5.4 Remove screws (item 40) and slide off handle
assembly from clevis housing.
5.4.1 For 425--16 model 4025075, slide pistol
grip handle and front handle assembly from
clevis housing as one unit. Loosen hex head
screw (item 69) if necessary.
5.5 Remove hanger (item 54) and hanger bushing
(item 55).
5.6 Extend the piston (item 23) so that the dowel pin
(item 49) in the yoke (item 48) lines up with the
holes in the clevis housing (item 51).
5.7 Remove the dowel pin (item 49) using a pin
punch.
maintenance instructions