Page 1
MODEL T31643
2-TON BEAR-LIFT PRO
PALLET STACKER
INSTRUCTIONS
For questions or help with this product contact Tech Support at (570) 546-9663 or techsupport@grizzly.com
Introduction
The Model T31643 2-Ton Bear-Lift Pro Pallet
Stacker is the perfect tool for stacking pallets when
the operator does not want the fuss of recharging
or gassing up. Hydraulic manual lift design offers
either hand or foot operation and locks to keep it
in place. The T31643 comes fully assembled with
adjustable forks; hard-chromed, polished pistons;
and double-sealed, polyurethane oil seals.
Specifications
Maximum Capacity ............................... 4000 lbs.
Maximum Lift Height
Lif t Ty pe
Fork Width
Maximum Pallet Width
................................... Manual Hydraulic
......................................... 9½" – 37¾"
......................................62"
....................................42"
• Do not exceed maximum load capacity.
• Do not reach under or over moving parts
to avoid pinch and crush points.
• Keep clear of forks when lowering load.
• Pull release lever slowly when lowering
forks.
• Only use on a flat, even surface.
• Do not transport loads with forks raised
more than 5".
• Always store stacker with forks lowered and without load. Do not leave
unattended while in use.
To reduce your risk of
serious injury, read this
entire manual BEFORE
using machine.
FALL HAZARD!
Do not operate pallet
stacker with passenger on
forks. A fall from raised
forks could result in injury
or even death.
INJURY HAZARD!
Figure 1. Model T31643.
COPYRIGHT © NOVEMBER, 2019 BY GRIZZLY INDUSTRIAL, INC.
NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
(FOR MODELS MFD. SINCE 9/19) #CS20680 PRINTED IN CHINA
V1.11.19
Page 2
Identification
A. Forks: Adjust to desired width to support and
lift pallet.
Stacker Handles: Used to maneuver stacker.
B.
Lift Control Lever: Controls manual lift sys-
C.
tem.
Operation
Using the lift control lever shown in Figure 3, the
pallet stacker forks can be raised, lowered, or
placed in the neutral position for moving.
Lower
Hand Lift Handle: Controls hydraulic lift by
D.
hand.
Foot Lift Handle: Controls hydraulic lift by
E.
foot.
Brakes: Secure wheels.
F.
B
C
A
D
E
Neutral
Lift
Figure 3. Handle lever positions.
Lift Position: When lever is in lift position, either
hand or foot lift handle can be pumped to lift forks.
Lower Position: Drops forks. Pull lever up
SL OW LY to begin lowering forks. Avoid pulling
lever up quickly or load will drop suddenly.
Neutral Position: Place handle in this position
to move load. In neutral position, pump and lift
mechanism are disengaged so that handle can
move up and down freely while operator moves
st acker.
To use pallet stacker:
1. Move pallet stacker to desired location using
stacker handles, then engage back wheel
brakes (see Figure 4).
-2-
F
Figure 2. Stacker components.
Figure 4. Wheel brake in locked position.
IMPORTANT: Always engage brake when adjust-
ing forks and when stacker is not being moved
from one location to another.
Model T31643 (Mfd. 9/19)
Page 3
2. Adjust forks to desired width (see Figure 5).
Forks
Figure 5. Adjustable forks.
3. Lower forks, disengage brakes, and insert
forks under pallet where weight will be centered and equally distributed (see Figure 6).
Lift forks just enough to clear front casters
4.
(see Figure 7).
Figure 7. Front casters cleared for transport.
Transport and lift pallet as needed.
5.
Lubrication
The front and rear wheels are attached with permanently sealed ball bearings, so they require
no lubrication, but we recommend adding a few
drops of SAE 10W-30 oil every three months to
each rotating point shown in Figure 8.
Figure 6. Forks under pallet.
Figure 8. Lubrication locations.
If fork width becomes difficult to adjust, you can
wax fork rail for ease of movement.
Model T31643 (Mfd. 9/19)
-3-
Page 4
Troubleshooting
Symptom Possible Cause Possible Solution
Forks will not lift
to max height.
Forks do not lift. 1. Hydraulic oil low/contaminated.
Forks do not
lower.
Forks lower by
themselves.
Forks lower too
sl owly.
Forks lower too
quickly.
Oil leaks. 1. Relief valve damaged.
1. Hydraulic oil low. 1. Fill pump assembly with hydraulic oil.
1. Fill pump assembly with hydraulic oil. If necessary,
drain old/contaminated oil and replace.
2. Too much hydraulic oil in pump assembly/air
in hydraulic system.
3. Pump valve nut too tight.
1. Lifting components jammed with debris.
2. Pump valve nut too loose.
3. Lifting components bent/damaged.
1. Impurities in relief valve/hydraulic oil.
2. Relief valve faulty/damaged.
3. Seals worn/damaged.
1. Pump valve nut misadjusted. 1. Tighten pump valve nut.
1. Pump valve nut misadjusted. 1. Loosen pump valve nut.
2. Oil fill plug gasket damaged.
3. Seals worn/damaged.
4. Cracked/worn/damaged parts.
2. Pump off extra hydraulic oil/air.
3. Loosen pump valve nut.
1. Inspect mechanism, clear debris.
2. Tighten pump valve nut.
3. Inspect/replace damaged lifting components.
1. Clean relief valve/change hydraulic oil.
2. Inspect/replace.
3. Inspect/replace.
1. Inspect/replace.
2. Inspect/replace.
3. Inspect/replace.
4. Inspect/replace.
Adjusting Pump Valve Nut
Pump valve nut on the back of the hydraulic cylinder controls how open the pump valve is (see
Figure 9). If the nut is too loose, the forks will not
lower correctly, and if too tight, they won't lift.
Pump Valve Nut
Figure 9. Pump valve nut location.
Changing Hydraulic Oil
Hydraulic oil in the cylinder may need to be added
periodically after prolonged use or if it leaks
noticeably. We recommend ISO 32 or 46 grade
hydraulic oil.
To add hydraulic oil:
1. Lower forks completely.
Remove both hydraulic cylinder plugs (see
2.
Figure 10) and allow oil to drain completely.
Figure 10. Hydraulic cylinder plug locations.
3. Replace lower plug and add replacement oil
to upper fill hole until level reaches bottom of
hole.
. Without replacing fill plug, pump one lift
4
handle 10–15 times to expel any trapped air.
. Replace fill plug and clean up any hydraulic
5
oil residue. Old oil can be stored in a sealable
metal or thick plastic container and recycled
at a recycling center near you.
-4-
Model T31643 (Mfd. 9/19)
Page 5
30
31
33
32
A
E
B
A
M
M
A
112
T31643 Parts Breakdown
33
34
32
36
N
I
G
R
6
2
0
5
-
2
R
S
M
O
Y
200
35
N
I
G
R
A
6
E
2
0
B
5
A
-
2
M
R
M
S
A
M
O
Y
23
22
24
31
23
30
21
18
20
17
19
37
38
27
275
274
251
276
60
61
266
278
59
62
102
103
104
105
106
277
115
64
65
63
266
101
N
I
G
R
A
6
2
E
0
B
5
A
-
2
M
R
M
S
A
M
O
Y
276
58
96
266
275
57
265
267
268
N
I
G
R
A
6
2
E
0
B
5
A
-
2
M
R
M
S
A
M
O
Y
274
26
111
99
272
285
A
M
M
O
M
Y
A
B
E
A
R
I
N
G
6
2
0
5
-
S
2
R
A
M
M
O
M
Y
A
B
E
A
R
I
N
G
6
2
0
5
-
S
2
R
273
100
272
269
270
272
271
279
27
25
13
14
18
28
29
1
11
43
12
46
16
2
3
44
40
15
41
45
4
42
44
39
7
43
9
8
5
N
I
G
R
A
6
E
2
0
B
5
A
-
2
M
R
M
S
A
M
O
Y
6
10
97
98
95
94
93
92
83
76
86
84
85
82
88
87
89
47
77
51
48
90
49
91
50
55
56
78
79
80
81
286
Model T31643 (Mfd. Since 9/19)
114
52
75
53
54
107
74
113
109
108
73
68
72
70
110
67
71
66
69
BUY PARTS ONLINE AT GRIZZLY.CO M!
Scan QR code to visit our Parts Store.
-5-
Page 6
T31643 Parts List
REF P ART # DES CRIP TI ON REF P ART # DES CRIP TI ON
1 PT31643001 FORK MOUNTI NG PLATE 60 PT31643060 ROLL PIN 4 X 30
2 PT31643002 HEX BOLT M12-1.75 X 75 61 PT31643061 ROLL PIN 4 X 22
3 PT31643003 HEX NUT M12-1.75 62 PT31643062 ROLL PIN 4 X 22
4 PT31643004 INT RETA I NI NG RING 7 2MM 63 PT31643063 STEEL WI RE
5 PT31643005 BEARING SLEEVE 40MM 64 PT31643064 LI FT HA NDLE WHEEL
6 PT31643006 EXT RETA I NI NG RING 35MM 65 PT31643065 ROLL PIN 6 X 30
7 PT31643007 BUSHI NG 16MM 66 PT31643066 OIL PLUG
8 PT31643008 BALL BEARING 6207-2RS 67 PT31643067 FLAT WASHER 21MM COPPER
9 PT31643009 BEARING SLEEVE 110 X 35 68 PT31643068 FLAT WASHER 9MM COPPER
10 PT31643010 HAMMER FORK 69 PT31643069 COMPRESSION SPRING 1.2 X 6 X 15
11 PT31643011 STAMPI NG FORK 70 PT31643070 SPRING BASE
12 PT31643012 LI FTI NG FRAME 71 PT31643071 STEEL BALL 6MM
13 PT31643013 HEX NUT M10 -1. 5 72 PT31643072 STEEL BALL 6MM
14 PT31643014 LOCK WASHER 10MM 73 PT31643073 PRESSURE VALVE M20-1.5 X 44
15 PT31643015 HEX BOLT M10-1.5 X 35 74 PT31643074 O-RING 13.2 X 2.5
16 PT31643016 WHEEL SHAFT 19MM 75 PT31643075 ROLL PIN 3 X 13
17 PT31643017 LOCK WASHER 10MM 76 PT31643076 ROLL PIN 8 X 30
18 PT31643018 FLAT WASHER 10MM 77 PT31643077 ROLL PIN 8 X 30
19 PT31643019 HEX BOLT M10-1.5 X 25 78 PT31643078 ROLLER SHAFT
20 PT31643020 CROSS BAR 79 PT31643079 CHAI N B EARI NG SHAFT
21 PT31643021 MAST 80 PT31643080 COMPOSI TE BUSHI NG 1608
22 PT31643022 STEEL FENCE 81 PT31643081 CHAI N B EARI NG SHAFT
23 PT31643023 FENDER WAS HER 5MM 82 PT31643082 ROLLER
24 PT31643024 PHLP HD SCR M5-.8 X 12 83 PT31643083 COMPOSITE BUSHING 1612
25 PT31643025 HEX BOLT M8-1.25 X 35 84 PT31643084 PEDAL SHAFT SLEEVE
26 PT31643026 HEX NUT M8- 1. 25 85 PT31643085 FOOT LEVER
27 PT31643027 FLAT WASHER 10MM 86 PT31643086 PUMP VALVE
28 PT31643028 COTTER PI N M5 X 25 S TANDARD 87 PT31643087 HANDLE SPINDLE
29 PT31643029 LOCK PIN 88 PT31643088 HINGE JOINT SCREW M6-1 X 48
30 PT31643030 BEARING SLEEVE 70 X 25 89 PT31643089 ROLL PIN 5 X 45
31 PT31643031 INT RETA I NI NG RING 6 0MM 90 PT31643090 COMPOSI TE BUSHI NG 1615
32 PT31643032 INT RETA I NI NG RING 7 2MM 91 PT31643091 COMPRESSION SPRING 5 X 45 X 140
33 PT31643033 BALL BEARING 6200-2RS 92 PT31643092 LOCK RI NG 16 X 24 X 4.5
34 PT31643034 CHAI N B LOCK 93 PT31643093 O-RING 16 X 3.6
35 PT31643035 ROLL PIN 8 X 35 94 PT31643094 DUST SEAL 16 X 24 X 4. 5
36 PT31643036 BEARING SHAFT 95 PT31643095 S PRI NG CUP
37 PT31643037 ROLLER CHAIN 96 PT31643096 HANDLE PI STON RAM
38 PT31643038 COTTER PI N M4 X 28 S TANDARD 97 PT31643097 EXTENSI ON SPRING 4 X 18 X 180
39 PT31643039 LINK PIN 98 PT31643098 ROLLER CHAIN 05B 1 X 20
40 PT31643040 LINK SCREW 25 X 25 99 PT31643099 HOLLOW OIL PLUG
41 PT31643041 COTTER PIN M10 X 40 STANDARD 100 PT31643100 PI S TON HOUS I NG
42 PT31643042 HEX NUT M20 -2. 5 101 PT31643101 CYL I NDE R HEAD
43 PT31643043 CASTER DUS T COVE R 102 PT31643102 O-RING 75 X 3.6
44 PT31643044 BALL BEARING 6204ZZ 103 PT31643103 DUST SEAL 4 X 48 X 5
45 PT31643045 WHEEL 80 X 60 (FRONT) 104 PT31643104 O-RING 4 X 3.6
46 PT31643046 EXT RETA I NI NG RING 19MM 105 PT31643105 LOCK RI NG 40 X 50 X 6
47 PT31643047 OI L SUCTI ON ROD 106 PT31643106 CONTACT CYL I NDE R
48 PT31643048 O-RING 4.8 X 1.8 107 PT31643107 COMPRESSI ON SPRING 3 X 10 X 26
49 PT31643049 O-RING 4.8 X 1.8 108 PT31643108 UNLOADI NG SCREW M14-1.5 X 6.5
50 PT31643050 STEEL BALL 6MM 109 PT31643109 FLAT WASHER 13 X 22 X 2.5MM CP
51 PT31643051 ROLL PIN 8 X 30 110 PT31643110 FLAT HEAD OIL PLUG 20 X 13.5MM
52 PT31643052 STEEL BALL 6MM 111 PT31643111 LOCK WASHER 8MM
53 PT31643053 FLAT WASHER 6MM COPPER 112 PT31643112 CAP SCREW M10-1.5 X 55
54 PT31643054 RIVET 4 X 10MM BLIND 113 PT31643113 HEX NUT M4- . 7
55 PT31643055 STEEL BALL 6MM 114 PT31643114 PHLP HD SCR M8-1.25 X 10
56 PT31643056 SPRING BASE 115 PT31643115 FENDER WAS HER 8MM
57 PT31643057 LI FT CO NTROL HA NDLE 200 PT31643200 PISTON RAM
58 PT31643058 CURVED PLATE SPRING 251 PT31643251 LIFT HANDL E
59 PT31643059 ROLL PIN 4 X 30 265 PT31643265 I NT RE TAI NI NG RI NG 25 MM
-6-
BUY PARTS ONLINE AT GRIZZLY.CO M!
Scan QR code to visit our Parts Store.
Model T31643 (Mfd. Since 9/19)
Page 7
T31643 Parts List (Cont.)
Please Note: We do our best to stock replacement parts whenever possible, but we cannot guarantee that all parts shown here
are available for purchase. Call (800) 523 - 4777 or visit our online parts store at www.grizzly.com to check for availability.
REF PART # DES CRIPTI ON RE F PART # DE S CRIP TI ON
266 PT31643266 BALL BEARING 6204-2RS 274 PT31643274 HEX BOLT M10-1.5 X 25
267 PT31643267 I NT RETAI NING RI NG 25MM 275 PT31643275 LOCK WASHER 10MM
268 PT31643268 BALL BEARING 6205-2RS 276 PT31643276 LOCK WASHER 10MM
269 PT31643269 FOOT BRAKE M8-1.25 X 12 277 PT31643277 WHEEL 180 X 50 REAR
270 PT31643270 WHEEL STOP 278 PT31643278 BEARING 20MM
271 PT31643271 WHEEL BRACKET L 279 PT31643279 WHEEL BRACKET R
272 PT31643272 FLA T WASHE R 8MM 285 PT31643285 WHEEL DUST COVER
273 PT31643273 LOCK NUT M8-1.25 286 PT31643286 FOOT LEVER BRACKET
Model T31643 (Mfd. Since 9/19)
BUY PARTS ONLINE AT GRIZZLY.CO M!
Scan QR code to visit our Parts Store.
-7-
Page 8
Labels & Cosmetics
301
302
T31643
WARNING!
To reduce risk of death
or serious injury, read
manual BEFORE using
machine.
To get a new manual, call
(800) 523-4777 or go to
www.grizzly.com.
304
305
306
307
MODEL T31643
2T BEAR LIFT PRO
PALLET STACKER
Specifications
Maximum Capacity: 4000 lbs.
Maximum Lift Height: 62"
Lift Type: Manual Hydraulic
Fork Width: 9-1/2" − 37-3/4"
Weight: 606 lbs.
Mfd. for Grizzly in China
To reduce risk of serious
injury:
1. Read and understand
owner’s manual before
operating.
2. Do not exceed max safe
load capacity.
3. Do not sit on or ride fork.
4. Secure load before
raising.
5. Do not transport loads
with forks raised more
than 5".
6. Do not use on uneven
floors.
7. Keep clear of fork when
lowering load.
8. Pull release lever slowly
when lowering fork.
9. Prevent unauthorized use
by children or untrained
users; restrict access
when unattended.
Date
S/N
FALL HAZARD!
Do not operate
pallet stacker
with passenger
on forks.
308
WARNING!
grizzly.com
REF P ART # DES CRIPTIO N REF P ART # DES CRIPTIO N
301 PT31643301 GRIZZLY. COM LABEL 306 PT31643306 MACHINE ID LABEL
302 PT31643302 QR CODE LABEL 307 PT31643307 FALL HAZARD LABEL
304 PT31643304 READ MANUAL LABEL 308 PT31643308 TO UCH-UP P AI NT, GRIZZLY BLACK
305 PT31643305 TOUCH-UP PA I NT, GRI ZZLY GREEN
Safety labels help reduce the risk of serious injury caused by machine hazards. If any label comes
off or becomes unreadable, the owner of this machine MUST replace it in the original location
before resuming operations. For replacements, contact (800) 523-4777 or www.grizzly.com.
-8-
BUY PARTS ONLINE AT GRIZZLY.CO M!
Scan QR code to visit our Parts Store.
Model T31643 (Mfd. Since 9/19)
Loading...