Tennant 242E, Operator'S Manual

Page: 91 / 92

APPENDIX
4-3
242E MM243 (9---89)
HARDWARE INFORMATION
The following charts state standard plated hardware
tightening ranges for normal assembly applications.
Decrease the specified torque by 20% when using a
thread lubricant. Do not substitute lower grade
hardware for higher grade hardware. If higher grade
hardware than specified is substituted, tighten only
to the specified hardware torque value to avoid
damaging the threads of the part being threaded
into, as when threading into speed nuts or
weldments.
STANDARD BOLT TORQUE CHART
Thread SAE Grade 5 SAE Grade 8
Siz Torque ft lb (Nm) Torque ft lb (Nm)
______________________________________________________________
0.25 in 7---10 (9---14) 10---13 (14---38)
0.31 in 15---20 (20---27) 20---26 (27---35)
0.38 in 27---35 (37---47) 36---47 (49---64)
0.44 in 43---56 (58---76) 53---76 (72---103)
0.50 in 65---85 (88---115) 89---116 (121---157)
0.62 in 130---170 (176---231) 117---265 (159---359)
0.75 in 215---280 (291---380) 313---407 (424---552)
1.00 in 500---650 (678---881) 757---984 (1026---1334)
NOTE: Decrease torque by 20% when using a thread
lubricant.
METRIC BOLT TORQUE CHART
Thread Class 8.8 Class 10.9
Size Torque ft lb (Nm) Torque ft lb (Nm)
______________________________________________________________
M4 2 (3) 3 (4)
M5 4 (5) 6 (8)
M6 7 (9) 10 (14)
M8 18 (24) 25 (34)
M10 32 (43) 47 (64)
M12 58 (79) 83 (112)
M14 94 (127) 133 (180)
M16 144 (195) 196 (265)
M20 260 (352) 336 (455)
M24 470 (637) 664 (900)
NOTE: Decrease torque by 20% when using a thread
lubricant.
Exceptions to the above chart:
Rear wheel hub nut --- 200 to 250 ft lb
(271 to 339 Nm)
Rear wheel lug nuts --- 75 to 85 ft lb
(102 to 115 Nm)
Vacuum fan impeller nut --- 20 in lb (2 Nm)
Pump sheave bushing nuts --- 108 in lb
(12 Nm) alternating
Drive motor sheave bushing nuts --- 80 in lb
(9 Nm) alternating
BOLT IDENTIFICATION
Identification Specification
Grade Marking and Grade
____________________________________________________
SAE---Grade 5
SAE---Grade 8
ISO---Grade 8.8
ISO---Grade 10.9
01395
THREAD SEALANT AND LOCKING COMPOUNDS
Thread sealants and locking compounds may be
used on this machine. They include the following:
Locktite 515 sealant --- gasket forming material.
TENNANT Part No. 75567,15 oz (440 ml)
cartridge.
Locktite 242 blue --- medium strength thread
locking compound. TENNANT Part No. 32676,
0.5 ml tube.
Locktite 271 red --- high strength thread locking
compound. TENNANT Part No. 19857, 0.5 ml
tube.