-13-
142766 - PRO-TILL 10|13 (10-February-2022)
Service & Maintenance
HYDRAULIC HOSE SPECIFICATIONS
Note:
Unless otherwise stated, Hydraulic Hoses are
either 3/8 or 1/2 with ORF female swivel ends.
• Make sure that all components in the hydraulic
system are kept in good condition and are clean.
• Replace any worn, cut, abraded, fl attened or
crimped hoses and metal lines.
• Do not attempt any makeshift repairs to the
hydraulic lines, fi ttings or hoses by using tape,
clamps or cements. The hydraulic system operates
under extremely high-pressure. Such repairs will
fail suddenly and create a hazardous and unsafe
condition.
• Wear proper hand and eye
protection when searching for a
high-pressure hydraulic leak. Use
a piece of wood or cardboard as
a backstop instead of hands to
isolate and identify a leak.
• If injured by a concentrated high-pressure stream of
hydraulic fl uid, seek medical attention immediately.
Serious infection or toxic reaction can develop from
hydraulic fl uid piercing the skin surface.
• Before applying pressure to the system, make sure
all components are tight and that lines, hoses and
couplings are not damaged.
HYDRAULIC SAFETY
TORQUE SPECIFICATIONS
Checking Bolt Torque
The tables below give correct torque values for various bolts
and capscrews. Tighten all bolts to the torques specifi ed in
chart unless otherwise noted. Check the tightness of bolts
periodically, using these bolt torque charts as a guide.
Replace hardware with the same strength (Grade/Class) bolt.
TORQUE
Note:
Unless stated otherwise, hardware is typically:
Hex, Plated GR5 UNC or P8.8 (metric)
HARDWARE SPECIFICATIONS
HYDRAULIC HOSE INSTALLATION TIPS
The following tips are to help you identify some possible
problem areas in the installation of hydraulic hoses.
1. Installation should be completed in a clean
environment clear of dust and contaminants.
Hoses and fi ttings should be capped if not installed.
2. Ensure hoses are not twisted during installation as
this may weaken the hose. Also, the pressure in a
twisted hose may loosen fi ttings or connections.
3. Allow suffi cient bend radius in hoses when installing
to prevent lines from collapsing and fl ow becoming
restricted.
4. When installing hoses in an area of movement or
fl exing, allow enough free length for motion and to
ensure fi tting connections are not stressed.
5. Ensure hoses are properly clamped and secured in
position after routing is complete to provide a cleaner
installation and prevent possible damage or hazards.
v1.1
IMPERIAL TORQUE SPECIFICATIONS
(Coarse Thread - based on “Zinc Plated” values)
Size
Grade 5
Grade 8
lb.ft
(
N.m
)
lb.ft
(
N.m
)
1/4”
7 (
10
)
10 (
14
)
5/16”
15 (
20
)
20 (
28
)
3/8”
25 (
35
)
35 (
50
)
7/16”
40 (
55
)
60 (
80
)
1/2”
65 (
90
)
90 (
120
)
9/16”
90 (
125
)
130 (
175
)
5/8”
130 (
175
)
180 (
245
)
3/4”
230 (
310
)
320 (
435
)
7/8”
365 (
495
)
515 (
700
)
1”
550 (
745
)
770 (
1050
)
1-1/8”
675 (
915
)
1095 (
1485
)
1-1/4”
950 (
1290
)
1545 (
2095
)
1-3/8”
1250 (
1695
)
2025 (
2745
)
1-1/2”
1650 (
2245
)
2690 (
3645
)
SAE-5
SAE-8
METRIC TORQUE SPECIFICATIONS
(Coarse Thread - based on “Zinc Plated” values)
Size
Class 8.8
Class 10.9
lb.ft
(
N.m
)
lb.ft
(
N.m
)
M6
7 (
10
)
10 (
14
)
M8
16 (
22
)
23 (
31
)
M10
30 (
42
)
45 (
60
)
M12
55 (
75
)
80 (
108
)
M14
90 (
120
)
125 (
170
)
M16
135 (
185
)
195 (
265
)
M18
190 (
255
)
270 (
365
)
M20
265 (
360
)
380 (
515
)
M22
365 (
495
)
520 (
705
)
M24
460 (
625
)
660 (
895
)
M27
675 (
915
)
970 (
1315
)
M30
915 (
1240
)
1310 (
1780
)
M33
1250 (
1695
)
1785 (
2420
)
M36
1600 (
2175
)
2290 (
3110
)
8.8
10.9
Содержание PRO-TILL 10
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