Mikasa Sangyo Mvh-306 User manual

MVH-306
SERVICEMANUAL
410-00903
REVERSIBLECOMPACTOR

C O N T E N T S
1
１. Tools
２. Inspection Procedure
３. Engine, Oil and V-belt
４. Rules for conducting service work
５. Removing and re-mounting
5-1 Removing battery from machine
5-2 Operation System
5-3 Base machine
5-4 Vibrating System
６. Periodical Inspection and Maintenance Work
７. Trouble Shooting
８. Wiring Diagram
2
3
3
4
5
5
6
25
8
9
21
28
5-6
5-5 Hand Pump 15
Hand Pump Accumlator 18

1. TOOLS
1. Wrench 10mm 12mm 13mm 14mm 17mm 19mm 22mm 24mm 27mm
Offset wrench/Socket wrench/Adjustable wrench
2. Hexagonal wrench 3/16inch
5mm 8mm 10mm 14mm
3. Plier
4. External snap ring plier/Internal snap ring plier(bent type can be also used)
5. Screwdriver, flat and cross
6. Metal and plastic hammers
7. Pulley puller
8. Sealing compound (Locktite 242, 271 and 638)
9. Liquid gasket
10. Pressing machine
2
11.
9840-10060
Spring Compression Tool
9840-10040
Disassembling Tool A
9840-10050
Disassembling Tool B
Special jigs for Disassembling/Assembling of Hand Pump

1. External appearance check
(1) Installation of parts (loosened screw, defective parts, etc.)
(2) Damage on machine
(3) Oil check (level and contamination)
a. Engine oil (SAE10W-30 when shipped) (See Table 1 for the capacity)
b. Vibrator
c. Hydraulic oil (forward and reverse)
(4) V-belt for proper tension, damage, crack, hardening, etc.
(5) Shock rubber for damage, crack, fatigue, hardening, etc.
2. Operating test
(1) Engine
Engine speed check (Max. set rpm and idling)
(2) Traveling
a. Check for selection of forward/reverse travel.
b. Check for speed of forward/reverse travel.
(3) Check for abnormal noise during operation.
Table 1
Type
MVH-306ＤＳ
MVH-306ＧＨ
MVH-306ＧE
Mounted engine
Yanmar L70AE
Honda GX270
Robin EX270
Set rpm (min-1)
3600
3600
36
00
Fuel tank capacity (Liter)
3.5
6.0
6.1
Engine oil capacity (L)
1.1
1.1
1.1
Vibrator oil capacity (L)
0.6
0.6
0.6
Lubrication oil in use
Engine Oil SAE10W-30
Vibrator oil replacement
interval (hours)
200
Size and quantity of belt
HDPF5370 x 1
HDPF5360 x 1
HDPF5360 x 1
Forward
0～23
0～23
0～23
Compaction
speed (m/min)
Reverse
0～23
0～23
0～23
Hydraulic oil
Shell Tellus #46 or equivalent
2. INSPECTION PROCEDURE
3.Engine, Oil and V-belt
INSPECTION PROCEDURE
3

4. RULES FOR CONDUCTING SERVICE WORK
1. In order to avoid deficient reassembly, know normal status of installation before removing or
disassembling any part. Level check or replacement of vibrator oil should be carried out on level
ground.
2. Each time disassembly is made involving oil seal, gasket, packing, o-ring, lock washer or the like, be sure
to replace them with new ones.
3. Mating surfaces of vibrator case and compaction plate should be sealed with liquid gasket (Clean and
de-grease the mating surfaces thoroughly).
NOTE: All the screw in use with this machine are right handed.
Table of Tightening Torque (kgf-cm) Table 2
Screw diameter
Material
6mm 8mm 10mm 12mm 14mm 16mm 18mm 20mm
4T(SS41) 70 150 300 500 750 1,100 1,400 2,000
6-8T(S45C) 100 250 500 800 1,300 2,000 2,700 3,800
11T(SCM3) 150 400 800 1,200 2,000 2,900 4,200 5,600
In case counter
part is made from
aluminum
100 300～350 650～700
※For indication in SI Unit (International Unit System), use the conversion of 1kgf-cm=9.80665N-cm
5. Disassembly work should be conducted where it is free from dust.
6. Where bonding agent such as Loctite has been in use and screw is hard to loosen, heat it with torch lamp
or the like. Such heated bolt must be replaced with new one, which is of high-tension type as specified.
7. Use proper tool in proper manner.
8. Remove (-) battery terminal first before disassembling and connect (-) battery terminal lastly.
Hydraulic hose tightening torque: Screw size 1/4 380kgf-cm
4
4. Clean the screw before coating with Loctite. For tightening bolts and nuts, use the specified standard
torque and bonding agent (Loctite or the like). For such bolts and nuts that are not specified, see Table
of Tightening Torque.

Nylon Nut M8 (18)
5. REMOVING AND RE-MOUNTING
5-1 Removing and re-mounting the battery
Photo 1
Photo 2
Photo 3
Battery cover
Bolt (15)
battery terminal (-) (9)
battery cord
(-) (1)
Battery (8)
19
4
5
6
7
14
17
13
18
10
12
8
20
18
19
17
14
3
516
15
911
12
(1) Removing the battery
a.
b.
c.
(2) Re-mounting the battery
a.
Fig.1
5
4 pieces of Bolt (15) unscrewed and take
off the Battery cover (13). (Photo 1)
Nut of the battery terminal (-) (9) removed,
disconnect the (-) (1) battery cord.
Nut of the battery terminal (+) (11)
removed, disconnect the (+) (2) battery
cord. (Photo 2)
Nylon Nut M8 (18) removed, the battery
be taken out from the machine. (Photo 3)
Reversed procedure is applied for
re-mounting of the battery while
observing below :
1. When removing cables, use care
not to allow short circuiting between
(+) and (-) terminal
2. Connect (+) battery cord to the (+)
terminal and (-) cord to the (-)
terminal.